/*
* Disk Array driver for HP Smart Array SAS controllers
- * Copyright 2000, 2014 Hewlett-Packard Development Company, L.P.
+ * Copyright 2014-2015 PMC-Sierra, Inc.
+ * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Questions/Comments/Bugfixes to iss_storagedev@hp.com
+ * Questions/Comments/Bugfixes to storagedev@pmcs.com
*
*/
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
+#include <scsi/scsi_eh.h>
+#include <scsi/scsi_transport_sas.h>
+#include <scsi/scsi_dbg.h>
#include <linux/cciss_ioctl.h>
#include <linux/string.h>
#include <linux/bitmap.h>
#include "hpsa_cmd.h"
#include "hpsa.h"
-/* HPSA_DRIVER_VERSION must be 3 byte values (0-255) separated by '.' */
-#define HPSA_DRIVER_VERSION "3.4.4-1"
+/*
+ * HPSA_DRIVER_VERSION must be 3 byte values (0-255) separated by '.'
+ * with an optional trailing '-' followed by a byte value (0-255).
+ */
+#define HPSA_DRIVER_VERSION "3.4.14-0"
#define DRIVER_NAME "HP HPSA Driver (v " HPSA_DRIVER_VERSION ")"
#define HPSA "hpsa"
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CC},
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CD},
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CE},
+ {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0580},
+ {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0581},
+ {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0582},
+ {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0583},
+ {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0584},
+ {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0585},
{PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0076},
{PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0087},
{PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x007D},
{0x21CC103C, "Smart Array", &SA5_access},
{0x21CD103C, "Smart Array", &SA5_access},
{0x21CE103C, "Smart HBA", &SA5_access},
+ {0x05809005, "SmartHBA-SA", &SA5_access},
+ {0x05819005, "SmartHBA-SA 8i", &SA5_access},
+ {0x05829005, "SmartHBA-SA 8i8e", &SA5_access},
+ {0x05839005, "SmartHBA-SA 8e", &SA5_access},
+ {0x05849005, "SmartHBA-SA 16i", &SA5_access},
+ {0x05859005, "SmartHBA-SA 4i4e", &SA5_access},
{0x00761590, "HP Storage P1224 Array Controller", &SA5_access},
{0x00871590, "HP Storage P1224e Array Controller", &SA5_access},
{0x007D1590, "HP Storage P1228 Array Controller", &SA5_access},
{0xFFFF103C, "Unknown Smart Array", &SA5_access},
};
+static struct scsi_transport_template *hpsa_sas_transport_template;
+static int hpsa_add_sas_host(struct ctlr_info *h);
+static void hpsa_delete_sas_host(struct ctlr_info *h);
+static int hpsa_add_sas_device(struct hpsa_sas_node *hpsa_sas_node,
+ struct hpsa_scsi_dev_t *device);
+static void hpsa_remove_sas_device(struct hpsa_scsi_dev_t *device);
+static struct hpsa_scsi_dev_t
+ *hpsa_find_device_by_sas_rphy(struct ctlr_info *h,
+ struct sas_rphy *rphy);
+
+#define SCSI_CMD_BUSY ((struct scsi_cmnd *)&hpsa_cmd_busy)
+static const struct scsi_cmnd hpsa_cmd_busy;
+#define SCSI_CMD_IDLE ((struct scsi_cmnd *)&hpsa_cmd_idle)
+static const struct scsi_cmnd hpsa_cmd_idle;
static int number_of_controllers;
static irqreturn_t do_hpsa_intr_intx(int irq, void *dev_id);
static void cmd_free(struct ctlr_info *h, struct CommandList *c);
static struct CommandList *cmd_alloc(struct ctlr_info *h);
+static void cmd_tagged_free(struct ctlr_info *h, struct CommandList *c);
+static struct CommandList *cmd_tagged_alloc(struct ctlr_info *h,
+ struct scsi_cmnd *scmd);
static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
void *buff, size_t size, u16 page_code, unsigned char *scsi3addr,
int cmd_type);
static void hpsa_free_cmd_pool(struct ctlr_info *h);
#define VPD_PAGE (1 << 8)
+#define HPSA_SIMPLE_ERROR_BITS 0x03
static int hpsa_scsi_queue_command(struct Scsi_Host *h, struct scsi_cmnd *cmd);
static void hpsa_scan_start(struct Scsi_Host *);
static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd);
static int hpsa_eh_abort_handler(struct scsi_cmnd *scsicmd);
static int hpsa_slave_alloc(struct scsi_device *sdev);
+static int hpsa_slave_configure(struct scsi_device *sdev);
static void hpsa_slave_destroy(struct scsi_device *sdev);
-static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno);
+static void hpsa_update_scsi_devices(struct ctlr_info *h);
static int check_for_unit_attention(struct ctlr_info *h,
struct CommandList *c);
static void check_ioctl_unit_attention(struct ctlr_info *h,
/* performant mode helper functions */
static void calc_bucket_map(int *bucket, int num_buckets,
int nsgs, int min_blocks, u32 *bucket_map);
-static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h);
+static void hpsa_free_performant_mode(struct ctlr_info *h);
+static int hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h);
static inline u32 next_command(struct ctlr_info *h, u8 q);
static int hpsa_find_cfg_addrs(struct pci_dev *pdev, void __iomem *vaddr,
u32 *cfg_base_addr, u64 *cfg_base_addr_index,
struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len,
u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk);
static void hpsa_command_resubmit_worker(struct work_struct *work);
+static u32 lockup_detected(struct ctlr_info *h);
+static int detect_controller_lockup(struct ctlr_info *h);
+static void hpsa_disable_rld_caching(struct ctlr_info *h);
+static inline int hpsa_scsi_do_report_phys_luns(struct ctlr_info *h,
+ struct ReportExtendedLUNdata *buf, int bufsize);
+static int hpsa_luns_changed(struct ctlr_info *h);
static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev)
{
return (struct ctlr_info *) *priv;
}
+static inline bool hpsa_is_cmd_idle(struct CommandList *c)
+{
+ return c->scsi_cmd == SCSI_CMD_IDLE;
+}
+
+static inline bool hpsa_is_pending_event(struct CommandList *c)
+{
+ return c->abort_pending || c->reset_pending;
+}
+
+/* extract sense key, asc, and ascq from sense data. -1 means invalid. */
+static void decode_sense_data(const u8 *sense_data, int sense_data_len,
+ u8 *sense_key, u8 *asc, u8 *ascq)
+{
+ struct scsi_sense_hdr sshdr;
+ bool rc;
+
+ *sense_key = -1;
+ *asc = -1;
+ *ascq = -1;
+
+ if (sense_data_len < 1)
+ return;
+
+ rc = scsi_normalize_sense(sense_data, sense_data_len, &sshdr);
+ if (rc) {
+ *sense_key = sshdr.sense_key;
+ *asc = sshdr.asc;
+ *ascq = sshdr.ascq;
+ }
+}
+
static int check_for_unit_attention(struct ctlr_info *h,
struct CommandList *c)
{
- if (c->err_info->SenseInfo[2] != UNIT_ATTENTION)
+ u8 sense_key, asc, ascq;
+ int sense_len;
+
+ if (c->err_info->SenseLen > sizeof(c->err_info->SenseInfo))
+ sense_len = sizeof(c->err_info->SenseInfo);
+ else
+ sense_len = c->err_info->SenseLen;
+
+ decode_sense_data(c->err_info->SenseInfo, sense_len,
+ &sense_key, &asc, &ascq);
+ if (sense_key != UNIT_ATTENTION || asc == 0xff)
return 0;
- switch (c->err_info->SenseInfo[12]) {
+ switch (asc) {
case STATE_CHANGED:
- dev_warn(&h->pdev->dev, HPSA "%d: a state change "
- "detected, command retried\n", h->ctlr);
+ dev_warn(&h->pdev->dev,
+ "%s: a state change detected, command retried\n",
+ h->devname);
break;
case LUN_FAILED:
dev_warn(&h->pdev->dev,
- HPSA "%d: LUN failure detected\n", h->ctlr);
+ "%s: LUN failure detected\n", h->devname);
break;
case REPORT_LUNS_CHANGED:
dev_warn(&h->pdev->dev,
- HPSA "%d: report LUN data changed\n", h->ctlr);
+ "%s: report LUN data changed\n", h->devname);
/*
* Note: this REPORT_LUNS_CHANGED condition only occurs on the external
* target (array) devices.
*/
break;
case POWER_OR_RESET:
- dev_warn(&h->pdev->dev, HPSA "%d: a power on "
- "or device reset detected\n", h->ctlr);
+ dev_warn(&h->pdev->dev,
+ "%s: a power on or device reset detected\n",
+ h->devname);
break;
case UNIT_ATTENTION_CLEARED:
- dev_warn(&h->pdev->dev, HPSA "%d: unit attention "
- "cleared by another initiator\n", h->ctlr);
+ dev_warn(&h->pdev->dev,
+ "%s: unit attention cleared by another initiator\n",
+ h->devname);
break;
default:
- dev_warn(&h->pdev->dev, HPSA "%d: unknown "
- "unit attention detected\n", h->ctlr);
+ dev_warn(&h->pdev->dev,
+ "%s: unknown unit attention detected\n",
+ h->devname);
break;
}
return 1;
return 1;
}
+static u32 lockup_detected(struct ctlr_info *h);
+static ssize_t host_show_lockup_detected(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int ld;
+ struct ctlr_info *h;
+ struct Scsi_Host *shost = class_to_shost(dev);
+
+ h = shost_to_hba(shost);
+ ld = lockup_detected(h);
+
+ return sprintf(buf, "ld=%d\n", ld);
+}
+
static ssize_t host_store_hp_ssd_smart_path_status(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
/* List of controllers which cannot be hard reset on kexec with reset_devices */
static u32 unresettable_controller[] = {
0x324a103C, /* Smart Array P712m */
- 0x324b103C, /* SmartArray P711m */
+ 0x324b103C, /* Smart Array P711m */
0x3223103C, /* Smart Array P800 */
0x3234103C, /* Smart Array P400 */
0x3235103C, /* Smart Array P400i */
0x409D0E11, /* Smart Array 6400 EM */
};
-static int ctlr_is_hard_resettable(u32 board_id)
+static u32 needs_abort_tags_swizzled[] = {
+ 0x323D103C, /* Smart Array P700m */
+ 0x324a103C, /* Smart Array P712m */
+ 0x324b103C, /* SmartArray P711m */
+};
+
+static int board_id_in_array(u32 a[], int nelems, u32 board_id)
{
int i;
- for (i = 0; i < ARRAY_SIZE(unresettable_controller); i++)
- if (unresettable_controller[i] == board_id)
- return 0;
- return 1;
+ for (i = 0; i < nelems; i++)
+ if (a[i] == board_id)
+ return 1;
+ return 0;
}
-static int ctlr_is_soft_resettable(u32 board_id)
+static int ctlr_is_hard_resettable(u32 board_id)
{
- int i;
+ return !board_id_in_array(unresettable_controller,
+ ARRAY_SIZE(unresettable_controller), board_id);
+}
- for (i = 0; i < ARRAY_SIZE(soft_unresettable_controller); i++)
- if (soft_unresettable_controller[i] == board_id)
- return 0;
- return 1;
+static int ctlr_is_soft_resettable(u32 board_id)
+{
+ return !board_id_in_array(soft_unresettable_controller,
+ ARRAY_SIZE(soft_unresettable_controller), board_id);
}
static int ctlr_is_resettable(u32 board_id)
ctlr_is_soft_resettable(board_id);
}
+static int ctlr_needs_abort_tags_swizzled(u32 board_id)
+{
+ return board_id_in_array(needs_abort_tags_swizzled,
+ ARRAY_SIZE(needs_abort_tags_swizzled), board_id);
+}
+
static ssize_t host_show_resettable(struct device *dev,
struct device_attribute *attr, char *buf)
{
}
static const char * const raid_label[] = { "0", "4", "1(+0)", "5", "5+1", "6",
- "1(+0)ADM", "UNKNOWN"
+ "1(+0)ADM", "UNKNOWN", "PHYS DRV"
};
#define HPSA_RAID_0 0
#define HPSA_RAID_4 1
#define HPSA_RAID_51 4
#define HPSA_RAID_6 5 /* also used for RAID 60 */
#define HPSA_RAID_ADM 6 /* also used for RAID 1+0 ADM */
-#define RAID_UNKNOWN (ARRAY_SIZE(raid_label) - 1)
+#define RAID_UNKNOWN (ARRAY_SIZE(raid_label) - 2)
+#define PHYSICAL_DRIVE (ARRAY_SIZE(raid_label) - 1)
+
+static inline bool is_logical_device(struct hpsa_scsi_dev_t *device)
+{
+ return !device->physical_device;
+}
static ssize_t raid_level_show(struct device *dev,
struct device_attribute *attr, char *buf)
}
/* Is this even a logical drive? */
- if (!is_logical_dev_addr_mode(hdev->scsi3addr)) {
+ if (!is_logical_device(hdev)) {
spin_unlock_irqrestore(&h->lock, flags);
l = snprintf(buf, PAGE_SIZE, "N/A\n");
return l;
return snprintf(buf, 20, "%d\n", offload_enabled);
}
+#define MAX_PATHS 8
+
+static ssize_t path_info_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;
+ int i;
+ int output_len = 0;
+ u8 box;
+ u8 bay;
+ u8 path_map_index = 0;
+ char *active;
+ unsigned char phys_connector[2];
+
+ sdev = to_scsi_device(dev);
+ h = sdev_to_hba(sdev);
+ spin_lock_irqsave(&h->devlock, flags);
+ hdev = sdev->hostdata;
+ if (!hdev) {
+ spin_unlock_irqrestore(&h->devlock, flags);
+ return -ENODEV;
+ }
+
+ bay = hdev->bay;
+ for (i = 0; i < MAX_PATHS; i++) {
+ path_map_index = 1<<i;
+ if (i == hdev->active_path_index)
+ active = "Active";
+ else if (hdev->path_map & path_map_index)
+ active = "Inactive";
+ else
+ continue;
+
+ output_len += scnprintf(buf + output_len,
+ PAGE_SIZE - output_len,
+ "[%d:%d:%d:%d] %20.20s ",
+ h->scsi_host->host_no,
+ hdev->bus, hdev->target, hdev->lun,
+ scsi_device_type(hdev->devtype));
+
+ if (hdev->external ||
+ hdev->devtype == TYPE_RAID ||
+ is_logical_device(hdev)) {
+ output_len += snprintf(buf + output_len,
+ PAGE_SIZE - output_len,
+ "%s\n", active);
+ continue;
+ }
+
+ box = hdev->box[i];
+ memcpy(&phys_connector, &hdev->phys_connector[i],
+ sizeof(phys_connector));
+ if (phys_connector[0] < '0')
+ phys_connector[0] = '0';
+ if (phys_connector[1] < '0')
+ phys_connector[1] = '0';
+ if (hdev->phys_connector[i] > 0)
+ output_len += snprintf(buf + output_len,
+ PAGE_SIZE - output_len,
+ "PORT: %.2s ",
+ phys_connector);
+ if (hdev->devtype == TYPE_DISK && hdev->expose_device) {
+ if (box == 0 || box == 0xFF) {
+ output_len += snprintf(buf + output_len,
+ PAGE_SIZE - output_len,
+ "BAY: %hhu %s\n",
+ bay, active);
+ } else {
+ output_len += snprintf(buf + output_len,
+ PAGE_SIZE - output_len,
+ "BOX: %hhu BAY: %hhu %s\n",
+ box, bay, active);
+ }
+ } else if (box != 0 && box != 0xFF) {
+ output_len += snprintf(buf + output_len,
+ PAGE_SIZE - output_len, "BOX: %hhu %s\n",
+ box, active);
+ } else
+ output_len += snprintf(buf + output_len,
+ PAGE_SIZE - output_len, "%s\n", active);
+ }
+
+ spin_unlock_irqrestore(&h->devlock, flags);
+ return output_len;
+}
+
static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);
static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);
static DEVICE_ATTR(hp_ssd_smart_path_enabled, S_IRUGO,
host_show_hp_ssd_smart_path_enabled, NULL);
+static DEVICE_ATTR(path_info, S_IRUGO, path_info_show, NULL);
static DEVICE_ATTR(hp_ssd_smart_path_status, S_IWUSR|S_IRUGO|S_IROTH,
host_show_hp_ssd_smart_path_status,
host_store_hp_ssd_smart_path_status);
host_show_transport_mode, NULL);
static DEVICE_ATTR(resettable, S_IRUGO,
host_show_resettable, NULL);
+static DEVICE_ATTR(lockup_detected, S_IRUGO,
+ host_show_lockup_detected, NULL);
static struct device_attribute *hpsa_sdev_attrs[] = {
&dev_attr_raid_level,
&dev_attr_lunid,
&dev_attr_unique_id,
&dev_attr_hp_ssd_smart_path_enabled,
+ &dev_attr_path_info,
NULL,
};
&dev_attr_resettable,
&dev_attr_hp_ssd_smart_path_status,
&dev_attr_raid_offload_debug,
+ &dev_attr_lockup_detected,
NULL,
};
+#define HPSA_NRESERVED_CMDS (HPSA_CMDS_RESERVED_FOR_ABORTS + \
+ HPSA_CMDS_RESERVED_FOR_DRIVER + HPSA_MAX_CONCURRENT_PASSTHRUS)
+
static struct scsi_host_template hpsa_driver_template = {
.module = THIS_MODULE,
.name = HPSA,
.eh_device_reset_handler = hpsa_eh_device_reset_handler,
.ioctl = hpsa_ioctl,
.slave_alloc = hpsa_slave_alloc,
+ .slave_configure = hpsa_slave_configure,
.slave_destroy = hpsa_slave_destroy,
#ifdef CONFIG_COMPAT
.compat_ioctl = hpsa_compat_ioctl,
* a separate special register for submitting commands.
*/
-/* set_performant_mode: Modify the tag for cciss performant
+/*
+ * set_performant_mode: Modify the tag for cciss performant
* set bit 0 for pull model, bits 3-1 for block fetch
* register number
*/
-static void set_performant_mode(struct ctlr_info *h, struct CommandList *c)
+#define DEFAULT_REPLY_QUEUE (-1)
+static void set_performant_mode(struct ctlr_info *h, struct CommandList *c,
+ int reply_queue)
{
if (likely(h->transMethod & CFGTBL_Trans_Performant)) {
c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1);
- if (likely(h->msix_vector > 0))
+ if (unlikely(!h->msix_vector))
+ return;
+ if (likely(reply_queue == DEFAULT_REPLY_QUEUE))
c->Header.ReplyQueue =
raw_smp_processor_id() % h->nreply_queues;
+ else
+ c->Header.ReplyQueue = reply_queue % h->nreply_queues;
}
}
static void set_ioaccel1_performant_mode(struct ctlr_info *h,
- struct CommandList *c)
+ struct CommandList *c,
+ int reply_queue)
{
struct io_accel1_cmd *cp = &h->ioaccel_cmd_pool[c->cmdindex];
- /* Tell the controller to post the reply to the queue for this
+ /*
+ * Tell the controller to post the reply to the queue for this
* processor. This seems to give the best I/O throughput.
*/
- cp->ReplyQueue = smp_processor_id() % h->nreply_queues;
- /* Set the bits in the address sent down to include:
+ if (likely(reply_queue == DEFAULT_REPLY_QUEUE))
+ cp->ReplyQueue = smp_processor_id() % h->nreply_queues;
+ else
+ cp->ReplyQueue = reply_queue % h->nreply_queues;
+ /*
+ * Set the bits in the address sent down to include:
* - performant mode bit (bit 0)
* - pull count (bits 1-3)
* - command type (bits 4-6)
IOACCEL1_BUSADDR_CMDTYPE;
}
-static void set_ioaccel2_performant_mode(struct ctlr_info *h,
- struct CommandList *c)
+static void set_ioaccel2_tmf_performant_mode(struct ctlr_info *h,
+ struct CommandList *c,
+ int reply_queue)
{
- struct io_accel2_cmd *cp = &h->ioaccel2_cmd_pool[c->cmdindex];
+ struct hpsa_tmf_struct *cp = (struct hpsa_tmf_struct *)
+ &h->ioaccel2_cmd_pool[c->cmdindex];
/* Tell the controller to post the reply to the queue for this
* processor. This seems to give the best I/O throughput.
*/
- cp->reply_queue = smp_processor_id() % h->nreply_queues;
+ if (likely(reply_queue == DEFAULT_REPLY_QUEUE))
+ cp->reply_queue = smp_processor_id() % h->nreply_queues;
+ else
+ cp->reply_queue = reply_queue % h->nreply_queues;
/* Set the bits in the address sent down to include:
* - performant mode bit not used in ioaccel mode 2
* - pull count (bits 0-3)
* - command type isn't needed for ioaccel2
*/
+ c->busaddr |= h->ioaccel2_blockFetchTable[0];
+}
+
+static void set_ioaccel2_performant_mode(struct ctlr_info *h,
+ struct CommandList *c,
+ int reply_queue)
+{
+ struct io_accel2_cmd *cp = &h->ioaccel2_cmd_pool[c->cmdindex];
+
+ /*
+ * Tell the controller to post the reply to the queue for this
+ * processor. This seems to give the best I/O throughput.
+ */
+ if (likely(reply_queue == DEFAULT_REPLY_QUEUE))
+ cp->reply_queue = smp_processor_id() % h->nreply_queues;
+ else
+ cp->reply_queue = reply_queue % h->nreply_queues;
+ /*
+ * Set the bits in the address sent down to include:
+ * - performant mode bit not used in ioaccel mode 2
+ * - pull count (bits 0-3)
+ * - command type isn't needed for ioaccel2
+ */
c->busaddr |= (h->ioaccel2_blockFetchTable[cp->sg_count]);
}
h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL;
}
-static void enqueue_cmd_and_start_io(struct ctlr_info *h,
- struct CommandList *c)
+static void __enqueue_cmd_and_start_io(struct ctlr_info *h,
+ struct CommandList *c, int reply_queue)
{
dial_down_lockup_detection_during_fw_flash(h, c);
atomic_inc(&h->commands_outstanding);
switch (c->cmd_type) {
case CMD_IOACCEL1:
- set_ioaccel1_performant_mode(h, c);
+ set_ioaccel1_performant_mode(h, c, reply_queue);
writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET);
break;
case CMD_IOACCEL2:
- set_ioaccel2_performant_mode(h, c);
+ set_ioaccel2_performant_mode(h, c, reply_queue);
+ writel(c->busaddr, h->vaddr + IOACCEL2_INBOUND_POSTQ_32);
+ break;
+ case IOACCEL2_TMF:
+ set_ioaccel2_tmf_performant_mode(h, c, reply_queue);
writel(c->busaddr, h->vaddr + IOACCEL2_INBOUND_POSTQ_32);
break;
default:
- set_performant_mode(h, c);
+ set_performant_mode(h, c, reply_queue);
h->access.submit_command(h, c);
}
}
+static void enqueue_cmd_and_start_io(struct ctlr_info *h, struct CommandList *c)
+{
+ if (unlikely(hpsa_is_pending_event(c)))
+ return finish_cmd(c);
+
+ __enqueue_cmd_and_start_io(h, c, DEFAULT_REPLY_QUEUE);
+}
+
static inline int is_hba_lunid(unsigned char scsi3addr[])
{
return memcmp(scsi3addr, RAID_CTLR_LUNID, 8) == 0;
return !found;
}
+static void hpsa_show_dev_msg(const char *level, struct ctlr_info *h,
+ struct hpsa_scsi_dev_t *dev, char *description)
+{
+#define LABEL_SIZE 25
+ char label[LABEL_SIZE];
+
+ if (h == NULL || h->pdev == NULL || h->scsi_host == NULL)
+ return;
+
+ switch (dev->devtype) {
+ case TYPE_RAID:
+ snprintf(label, LABEL_SIZE, "controller");
+ break;
+ case TYPE_ENCLOSURE:
+ snprintf(label, LABEL_SIZE, "enclosure");
+ break;
+ case TYPE_DISK:
+ if (dev->external)
+ snprintf(label, LABEL_SIZE, "external");
+ else if (!is_logical_dev_addr_mode(dev->scsi3addr))
+ snprintf(label, LABEL_SIZE, "%s",
+ raid_label[PHYSICAL_DRIVE]);
+ else
+ snprintf(label, LABEL_SIZE, "RAID-%s",
+ dev->raid_level > RAID_UNKNOWN ? "?" :
+ raid_label[dev->raid_level]);
+ break;
+ case TYPE_ROM:
+ snprintf(label, LABEL_SIZE, "rom");
+ break;
+ case TYPE_TAPE:
+ snprintf(label, LABEL_SIZE, "tape");
+ break;
+ case TYPE_MEDIUM_CHANGER:
+ snprintf(label, LABEL_SIZE, "changer");
+ break;
+ default:
+ snprintf(label, LABEL_SIZE, "UNKNOWN");
+ break;
+ }
+
+ dev_printk(level, &h->pdev->dev,
+ "scsi %d:%d:%d:%d: %s %s %.8s %.16s %s SSDSmartPathCap%c En%c Exp=%d\n",
+ h->scsi_host->host_no, dev->bus, dev->target, dev->lun,
+ description,
+ scsi_device_type(dev->devtype),
+ dev->vendor,
+ dev->model,
+ label,
+ dev->offload_config ? '+' : '-',
+ dev->offload_enabled ? '+' : '-',
+ dev->expose_device);
+}
+
/* Add an entry into h->dev[] array. */
-static int hpsa_scsi_add_entry(struct ctlr_info *h, int hostno,
+static int hpsa_scsi_add_entry(struct ctlr_info *h,
struct hpsa_scsi_dev_t *device,
struct hpsa_scsi_dev_t *added[], int *nadded)
{
/* 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.
+ * has the same 8 byte LUN address, excepting byte 4 and 5.
* 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;
+ addr1[5] = 0;
for (i = 0; i < n; i++) {
sd = h->dev[i];
memcpy(addr2, sd->scsi3addr, 8);
addr2[4] = 0;
- /* differ only in byte 4? */
+ addr2[5] = 0;
+ /* differ only in byte 4 and 5? */
if (memcmp(addr1, addr2, 8) == 0) {
device->bus = sd->bus;
device->target = sd->target;
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);
+ hpsa_show_dev_msg(KERN_INFO, h, device,
+ device->expose_device ? "added" : "masked");
+ device->offload_to_be_enabled = device->offload_enabled;
+ device->offload_enabled = 0;
return 0;
}
/* Update an entry in h->dev[] array. */
-static void hpsa_scsi_update_entry(struct ctlr_info *h, int hostno,
+static void hpsa_scsi_update_entry(struct ctlr_info *h,
int entry, struct hpsa_scsi_dev_t *new_entry)
{
+ int offload_enabled;
/* assumes h->devlock is held */
BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES);
*/
h->dev[entry]->raid_map = new_entry->raid_map;
h->dev[entry]->ioaccel_handle = new_entry->ioaccel_handle;
- wmb(); /* ensure raid map updated prior to ->offload_enabled */
}
+ if (new_entry->hba_ioaccel_enabled) {
+ h->dev[entry]->ioaccel_handle = new_entry->ioaccel_handle;
+ wmb(); /* set ioaccel_handle *before* hba_ioaccel_enabled */
+ }
+ h->dev[entry]->hba_ioaccel_enabled = new_entry->hba_ioaccel_enabled;
h->dev[entry]->offload_config = new_entry->offload_config;
h->dev[entry]->offload_to_mirror = new_entry->offload_to_mirror;
- h->dev[entry]->offload_enabled = new_entry->offload_enabled;
h->dev[entry]->queue_depth = new_entry->queue_depth;
- dev_info(&h->pdev->dev, "%s device c%db%dt%dl%d updated.\n",
- scsi_device_type(new_entry->devtype), hostno, new_entry->bus,
- new_entry->target, new_entry->lun);
+ /*
+ * We can turn off ioaccel offload now, but need to delay turning
+ * it on until we can update h->dev[entry]->phys_disk[], but we
+ * can't do that until all the devices are updated.
+ */
+ h->dev[entry]->offload_to_be_enabled = new_entry->offload_enabled;
+ if (!new_entry->offload_enabled)
+ h->dev[entry]->offload_enabled = 0;
+
+ offload_enabled = h->dev[entry]->offload_enabled;
+ h->dev[entry]->offload_enabled = h->dev[entry]->offload_to_be_enabled;
+ hpsa_show_dev_msg(KERN_INFO, h, h->dev[entry], "updated");
+ h->dev[entry]->offload_enabled = offload_enabled;
}
/* Replace an entry from h->dev[] array. */
-static void hpsa_scsi_replace_entry(struct ctlr_info *h, int hostno,
+static void hpsa_scsi_replace_entry(struct ctlr_info *h,
int entry, struct hpsa_scsi_dev_t *new_entry,
struct hpsa_scsi_dev_t *added[], int *nadded,
struct hpsa_scsi_dev_t *removed[], int *nremoved)
h->dev[entry] = new_entry;
added[*nadded] = new_entry;
(*nadded)++;
- dev_info(&h->pdev->dev, "%s device c%db%dt%dl%d changed.\n",
- scsi_device_type(new_entry->devtype), hostno, new_entry->bus,
- new_entry->target, new_entry->lun);
+ hpsa_show_dev_msg(KERN_INFO, h, new_entry, "replaced");
+ new_entry->offload_to_be_enabled = new_entry->offload_enabled;
+ new_entry->offload_enabled = 0;
}
/* Remove an entry from h->dev[] array. */
-static void hpsa_scsi_remove_entry(struct ctlr_info *h, int hostno, int entry,
+static void hpsa_scsi_remove_entry(struct ctlr_info *h, int entry,
struct hpsa_scsi_dev_t *removed[], int *nremoved)
{
/* assumes h->devlock is held */
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);
+ hpsa_show_dev_msg(KERN_INFO, h, sd, "removed");
}
#define SCSI3ADDR_EQ(a, b) ( \
return 1;
if (dev1->offload_enabled != dev2->offload_enabled)
return 1;
- if (dev1->queue_depth != dev2->queue_depth)
- return 1;
+ if (!is_logical_dev_addr_mode(dev1->scsi3addr))
+ if (dev1->queue_depth != dev2->queue_depth)
+ return 1;
return 0;
}
#define DEVICE_CHANGED 1
#define DEVICE_SAME 2
#define DEVICE_UPDATED 3
+ if (needle == NULL)
+ return DEVICE_NOT_FOUND;
+
for (i = 0; i < haystack_size; i++) {
if (haystack[i] == NULL) /* previously removed. */
continue;
h->scsi_host->host_no,
sd->bus, sd->target, sd->lun);
break;
+ case HPSA_LV_NOT_AVAILABLE:
+ dev_info(&h->pdev->dev,
+ "C%d:B%d:T%d:L%d Volume is waiting for transforming volume.\n",
+ h->scsi_host->host_no,
+ sd->bus, sd->target, sd->lun);
+ break;
case HPSA_LV_UNDERGOING_RPI:
dev_info(&h->pdev->dev,
- "C%d:B%d:T%d:L%d Volume is undergoing rapid parity initialization process.\n",
+ "C%d:B%d:T%d:L%d Volume is undergoing rapid parity init.\n",
h->scsi_host->host_no,
sd->bus, sd->target, sd->lun);
break;
case HPSA_LV_PENDING_RPI:
dev_info(&h->pdev->dev,
- "C%d:B%d:T%d:L%d Volume is queued for rapid parity initialization process.\n",
- h->scsi_host->host_no,
- sd->bus, sd->target, sd->lun);
+ "C%d:B%d:T%d:L%d Volume is queued for rapid parity initialization process.\n",
+ h->scsi_host->host_no,
+ sd->bus, sd->target, sd->lun);
break;
case HPSA_LV_ENCRYPTED_NO_KEY:
dev_info(&h->pdev->dev,
if (nraid_map_entries > RAID_MAP_MAX_ENTRIES)
nraid_map_entries = RAID_MAP_MAX_ENTRIES;
+ logical_drive->nphysical_disks = nraid_map_entries;
+
qdepth = 0;
for (i = 0; i < nraid_map_entries; i++) {
logical_drive->phys_disk[i] = NULL;
if (!logical_drive->offload_config)
continue;
for (j = 0; j < ndevices; j++) {
+ if (dev[j] == NULL)
+ continue;
if (dev[j]->devtype != TYPE_DISK)
continue;
- if (is_logical_dev_addr_mode(dev[j]->scsi3addr))
+ if (is_logical_device(dev[j]))
continue;
if (dev[j]->ioaccel_handle != dd[i].ioaccel_handle)
continue;
*/
if (!logical_drive->phys_disk[i]) {
logical_drive->offload_enabled = 0;
- logical_drive->queue_depth = h->nr_cmds;
+ logical_drive->offload_to_be_enabled = 0;
+ logical_drive->queue_depth = 8;
}
}
if (nraid_map_entries)
int i;
for (i = 0; i < ndevices; i++) {
+ if (dev[i] == NULL)
+ continue;
if (dev[i]->devtype != TYPE_DISK)
continue;
- if (!is_logical_dev_addr_mode(dev[i]->scsi3addr))
+ if (!is_logical_device(dev[i]))
+ continue;
+
+ /*
+ * If offload is currently enabled, the RAID map and
+ * phys_disk[] assignment *better* not be changing
+ * and since it isn't changing, we do not need to
+ * update it.
+ */
+ if (dev[i]->offload_enabled)
continue;
+
hpsa_figure_phys_disk_ptrs(h, dev, ndevices, dev[i]);
}
}
-static void adjust_hpsa_scsi_table(struct ctlr_info *h, int hostno,
+static int hpsa_add_device(struct ctlr_info *h, struct hpsa_scsi_dev_t *device)
+{
+ int rc = 0;
+
+ if (!h->scsi_host)
+ return 1;
+
+ if (is_logical_device(device)) /* RAID */
+ rc = scsi_add_device(h->scsi_host, device->bus,
+ device->target, device->lun);
+ else /* HBA */
+ rc = hpsa_add_sas_device(h->sas_host, device);
+
+ return rc;
+}
+
+static void hpsa_remove_device(struct ctlr_info *h,
+ struct hpsa_scsi_dev_t *device)
+{
+ struct scsi_device *sdev = NULL;
+
+ if (!h->scsi_host)
+ return;
+
+ if (is_logical_device(device)) { /* RAID */
+ sdev = scsi_device_lookup(h->scsi_host, device->bus,
+ device->target, device->lun);
+ if (sdev) {
+ scsi_remove_device(sdev);
+ scsi_device_put(sdev);
+ } else {
+ /*
+ * We don't expect to get here. Future commands
+ * to this device will get a selection timeout as
+ * if the device were gone.
+ */
+ hpsa_show_dev_msg(KERN_WARNING, h, device,
+ "didn't find device for removal.");
+ }
+ } else /* HBA */
+ hpsa_remove_sas_device(device);
+}
+
+static void adjust_hpsa_scsi_table(struct ctlr_info *h,
struct hpsa_scsi_dev_t *sd[], int nsds)
{
/* sd contains scsi3 addresses and devtypes, and inquiry
unsigned long flags;
struct hpsa_scsi_dev_t **added, **removed;
int nadded, nremoved;
- struct Scsi_Host *sh = NULL;
+
+ /*
+ * A reset can cause a device status to change
+ * re-schedule the scan to see what happened.
+ */
+ if (h->reset_in_progress) {
+ h->drv_req_rescan = 1;
+ return;
+ }
added = kzalloc(sizeof(*added) * HPSA_MAX_DEVICES, GFP_KERNEL);
removed = kzalloc(sizeof(*removed) * HPSA_MAX_DEVICES, GFP_KERNEL);
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);
+ hpsa_scsi_remove_entry(h, i, removed, &nremoved);
continue; /* remove ^^^, hence i not incremented */
} else if (device_change == DEVICE_CHANGED) {
changes++;
- hpsa_scsi_replace_entry(h, hostno, i, sd[entry],
+ hpsa_scsi_replace_entry(h, i, sd[entry],
added, &nadded, removed, &nremoved);
/* Set it to NULL to prevent it from being freed
* at the bottom of hpsa_update_scsi_devices()
*/
sd[entry] = NULL;
} else if (device_change == DEVICE_UPDATED) {
- hpsa_scsi_update_entry(h, hostno, i, sd[entry]);
+ hpsa_scsi_update_entry(h, i, sd[entry]);
}
i++;
}
*/
if (sd[i]->volume_offline) {
hpsa_show_volume_status(h, sd[i]);
- dev_info(&h->pdev->dev, "c%db%dt%dl%d: temporarily offline\n",
- h->scsi_host->host_no,
- sd[i]->bus, sd[i]->target, sd[i]->lun);
+ hpsa_show_dev_msg(KERN_INFO, h, sd[i], "offline");
continue;
}
h->ndevices, &entry);
if (device_change == DEVICE_NOT_FOUND) {
changes++;
- if (hpsa_scsi_add_entry(h, hostno, sd[i],
- added, &nadded) != 0)
+ if (hpsa_scsi_add_entry(h, sd[i], added, &nadded) != 0)
break;
sd[i] = NULL; /* prevent from being freed later. */
} else if (device_change == DEVICE_CHANGED) {
/* but if it does happen, we just ignore that device */
}
}
+ hpsa_update_log_drive_phys_drive_ptrs(h, h->dev, h->ndevices);
+
+ /* Now that h->dev[]->phys_disk[] is coherent, we can enable
+ * any logical drives that need it enabled.
+ */
+ for (i = 0; i < h->ndevices; i++) {
+ if (h->dev[i] == NULL)
+ continue;
+ h->dev[i]->offload_enabled = h->dev[i]->offload_to_be_enabled;
+ }
+
spin_unlock_irqrestore(&h->devlock, flags);
/* Monitor devices which are in one of several NOT READY states to be
* (or if there are no changes) scsi_scan_host will do it later the
* first time through.
*/
- if (hostno == -1 || !changes)
+ if (!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);
- }
+ if (removed[i] == NULL)
+ continue;
+ if (removed[i]->expose_device)
+ hpsa_remove_device(h, removed[i]);
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)
+ int rc = 0;
+
+ if (added[i] == NULL)
+ continue;
+ if (!(added[i]->expose_device))
+ continue;
+ rc = hpsa_add_device(h, added[i]);
+ if (!rc)
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);
+ dev_warn(&h->pdev->dev,
+ "addition failed %d, device not added.", rc);
/* 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]);
+ h->drv_req_rescan = 1;
}
free_and_out:
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;
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;
- if (sd->queue_depth)
- scsi_change_queue_depth(sdev, sd->queue_depth);
+ if (sdev_channel(sdev) == HPSA_PHYSICAL_DEVICE_BUS) {
+ struct scsi_target *starget;
+ struct sas_rphy *rphy;
+
+ starget = scsi_target(sdev);
+ rphy = target_to_rphy(starget);
+ sd = hpsa_find_device_by_sas_rphy(h, rphy);
+ if (sd) {
+ sd->target = sdev_id(sdev);
+ sd->lun = sdev->lun;
+ }
+ } else
+ sd = lookup_hpsa_scsi_dev(h, sdev_channel(sdev),
+ sdev_id(sdev), sdev->lun);
+
+ if (sd && sd->expose_device) {
atomic_set(&sd->ioaccel_cmds_out, 0);
- }
+ sdev->hostdata = sd;
+ } else
+ sdev->hostdata = NULL;
spin_unlock_irqrestore(&h->devlock, flags);
return 0;
}
+/* configure scsi device based on internal per-device structure */
+static int hpsa_slave_configure(struct scsi_device *sdev)
+{
+ struct hpsa_scsi_dev_t *sd;
+ int queue_depth;
+
+ sd = sdev->hostdata;
+ sdev->no_uld_attach = !sd || !sd->expose_device;
+
+ if (sd)
+ queue_depth = sd->queue_depth != 0 ?
+ sd->queue_depth : sdev->host->can_queue;
+ else
+ queue_depth = sdev->host->can_queue;
+
+ scsi_change_queue_depth(sdev, queue_depth);
+
+ return 0;
+}
+
static void hpsa_slave_destroy(struct scsi_device *sdev)
{
/* nothing to do. */
}
+static void hpsa_free_ioaccel2_sg_chain_blocks(struct ctlr_info *h)
+{
+ int i;
+
+ if (!h->ioaccel2_cmd_sg_list)
+ return;
+ for (i = 0; i < h->nr_cmds; i++) {
+ kfree(h->ioaccel2_cmd_sg_list[i]);
+ h->ioaccel2_cmd_sg_list[i] = NULL;
+ }
+ kfree(h->ioaccel2_cmd_sg_list);
+ h->ioaccel2_cmd_sg_list = NULL;
+}
+
+static int hpsa_allocate_ioaccel2_sg_chain_blocks(struct ctlr_info *h)
+{
+ int i;
+
+ if (h->chainsize <= 0)
+ return 0;
+
+ h->ioaccel2_cmd_sg_list =
+ kzalloc(sizeof(*h->ioaccel2_cmd_sg_list) * h->nr_cmds,
+ GFP_KERNEL);
+ if (!h->ioaccel2_cmd_sg_list)
+ return -ENOMEM;
+ for (i = 0; i < h->nr_cmds; i++) {
+ h->ioaccel2_cmd_sg_list[i] =
+ kmalloc(sizeof(*h->ioaccel2_cmd_sg_list[i]) *
+ h->maxsgentries, GFP_KERNEL);
+ if (!h->ioaccel2_cmd_sg_list[i])
+ goto clean;
+ }
+ return 0;
+
+clean:
+ hpsa_free_ioaccel2_sg_chain_blocks(h);
+ return -ENOMEM;
+}
+
static void hpsa_free_sg_chain_blocks(struct ctlr_info *h)
{
int i;
h->cmd_sg_list = NULL;
}
-static int hpsa_allocate_sg_chain_blocks(struct ctlr_info *h)
+static int hpsa_alloc_sg_chain_blocks(struct ctlr_info *h)
{
int i;
return -ENOMEM;
}
-static int hpsa_map_sg_chain_block(struct ctlr_info *h,
- struct CommandList *c)
+static int hpsa_map_ioaccel2_sg_chain_block(struct ctlr_info *h,
+ struct io_accel2_cmd *cp, struct CommandList *c)
{
- struct SGDescriptor *chain_sg, *chain_block;
+ struct ioaccel2_sg_element *chain_block;
u64 temp64;
- u32 chain_len;
+ u32 chain_size;
+
+ chain_block = h->ioaccel2_cmd_sg_list[c->cmdindex];
+ chain_size = le32_to_cpu(cp->sg[0].length);
+ temp64 = pci_map_single(h->pdev, chain_block, chain_size,
+ PCI_DMA_TODEVICE);
+ if (dma_mapping_error(&h->pdev->dev, temp64)) {
+ /* prevent subsequent unmapping */
+ cp->sg->address = 0;
+ return -1;
+ }
+ cp->sg->address = cpu_to_le64(temp64);
+ return 0;
+}
+
+static void hpsa_unmap_ioaccel2_sg_chain_block(struct ctlr_info *h,
+ struct io_accel2_cmd *cp)
+{
+ struct ioaccel2_sg_element *chain_sg;
+ u64 temp64;
+ u32 chain_size;
+
+ chain_sg = cp->sg;
+ temp64 = le64_to_cpu(chain_sg->address);
+ chain_size = le32_to_cpu(cp->sg[0].length);
+ pci_unmap_single(h->pdev, temp64, chain_size, PCI_DMA_TODEVICE);
+}
+
+static int hpsa_map_sg_chain_block(struct ctlr_info *h,
+ struct CommandList *c)
+{
+ struct SGDescriptor *chain_sg, *chain_block;
+ u64 temp64;
+ u32 chain_len;
chain_sg = &c->SG[h->max_cmd_sg_entries - 1];
chain_block = h->cmd_sg_list[c->cmdindex];
{
int data_len;
int retry = 0;
+ u32 ioaccel2_resid = 0;
switch (c2->error_data.serv_response) {
case IOACCEL2_SERV_RESPONSE_COMPLETE:
case IOACCEL2_STATUS_SR_TASK_COMP_GOOD:
break;
case IOACCEL2_STATUS_SR_TASK_COMP_CHK_COND:
- dev_warn(&h->pdev->dev,
- "%s: task complete with check condition.\n",
- "HP SSD Smart Path");
cmd->result |= SAM_STAT_CHECK_CONDITION;
if (c2->error_data.data_present !=
IOACCEL2_SENSE_DATA_PRESENT) {
retry = 1;
break;
case IOACCEL2_STATUS_SR_TASK_COMP_BUSY:
- dev_warn(&h->pdev->dev,
- "%s: task complete with BUSY status.\n",
- "HP SSD Smart Path");
retry = 1;
break;
case IOACCEL2_STATUS_SR_TASK_COMP_RES_CON:
- dev_warn(&h->pdev->dev,
- "%s: task complete with reservation conflict.\n",
- "HP SSD Smart Path");
retry = 1;
break;
case IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL:
- /* Make scsi midlayer do unlimited retries */
- cmd->result = DID_IMM_RETRY << 16;
+ retry = 1;
break;
case IOACCEL2_STATUS_SR_TASK_COMP_ABORTED:
- dev_warn(&h->pdev->dev,
- "%s: task complete with aborted status.\n",
- "HP SSD Smart Path");
retry = 1;
break;
default:
- dev_warn(&h->pdev->dev,
- "%s: task complete with unrecognized status: 0x%02x\n",
- "HP SSD Smart Path", c2->error_data.status);
retry = 1;
break;
}
break;
case IOACCEL2_SERV_RESPONSE_FAILURE:
- /* don't expect to get here. */
- dev_warn(&h->pdev->dev,
- "unexpected delivery or target failure, status = 0x%02x\n",
- c2->error_data.status);
- retry = 1;
+ switch (c2->error_data.status) {
+ case IOACCEL2_STATUS_SR_IO_ERROR:
+ case IOACCEL2_STATUS_SR_IO_ABORTED:
+ case IOACCEL2_STATUS_SR_OVERRUN:
+ retry = 1;
+ break;
+ case IOACCEL2_STATUS_SR_UNDERRUN:
+ cmd->result = (DID_OK << 16); /* host byte */
+ cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */
+ ioaccel2_resid = get_unaligned_le32(
+ &c2->error_data.resid_cnt[0]);
+ scsi_set_resid(cmd, ioaccel2_resid);
+ break;
+ case IOACCEL2_STATUS_SR_NO_PATH_TO_DEVICE:
+ case IOACCEL2_STATUS_SR_INVALID_DEVICE:
+ case IOACCEL2_STATUS_SR_IOACCEL_DISABLED:
+ /* We will get an event from ctlr to trigger rescan */
+ retry = 1;
+ break;
+ default:
+ retry = 1;
+ }
break;
case IOACCEL2_SERV_RESPONSE_TMF_COMPLETE:
break;
case IOACCEL2_SERV_RESPONSE_TMF_SUCCESS:
break;
case IOACCEL2_SERV_RESPONSE_TMF_REJECTED:
- dev_warn(&h->pdev->dev, "task management function rejected.\n");
retry = 1;
break;
case IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN:
- dev_warn(&h->pdev->dev, "task management function invalid LUN\n");
break;
default:
- dev_warn(&h->pdev->dev,
- "%s: Unrecognized server response: 0x%02x\n",
- "HP SSD Smart Path",
- c2->error_data.serv_response);
retry = 1;
break;
}
return retry; /* retry on raid path? */
}
+static void hpsa_cmd_resolve_events(struct ctlr_info *h,
+ struct CommandList *c)
+{
+ bool do_wake = false;
+
+ /*
+ * Prevent the following race in the abort handler:
+ *
+ * 1. LLD is requested to abort a SCSI command
+ * 2. The SCSI command completes
+ * 3. The struct CommandList associated with step 2 is made available
+ * 4. New I/O request to LLD to another LUN re-uses struct CommandList
+ * 5. Abort handler follows scsi_cmnd->host_scribble and
+ * finds struct CommandList and tries to aborts it
+ * Now we have aborted the wrong command.
+ *
+ * Reset c->scsi_cmd here so that the abort or reset handler will know
+ * this command has completed. Then, check to see if the handler is
+ * waiting for this command, and, if so, wake it.
+ */
+ c->scsi_cmd = SCSI_CMD_IDLE;
+ mb(); /* Declare command idle before checking for pending events. */
+ if (c->abort_pending) {
+ do_wake = true;
+ c->abort_pending = false;
+ }
+ if (c->reset_pending) {
+ unsigned long flags;
+ struct hpsa_scsi_dev_t *dev;
+
+ /*
+ * There appears to be a reset pending; lock the lock and
+ * reconfirm. If so, then decrement the count of outstanding
+ * commands and wake the reset command if this is the last one.
+ */
+ spin_lock_irqsave(&h->lock, flags);
+ dev = c->reset_pending; /* Re-fetch under the lock. */
+ if (dev && atomic_dec_and_test(&dev->reset_cmds_out))
+ do_wake = true;
+ c->reset_pending = NULL;
+ spin_unlock_irqrestore(&h->lock, flags);
+ }
+
+ if (do_wake)
+ wake_up_all(&h->event_sync_wait_queue);
+}
+
+static void hpsa_cmd_resolve_and_free(struct ctlr_info *h,
+ struct CommandList *c)
+{
+ hpsa_cmd_resolve_events(h, c);
+ cmd_tagged_free(h, c);
+}
+
+static void hpsa_cmd_free_and_done(struct ctlr_info *h,
+ struct CommandList *c, struct scsi_cmnd *cmd)
+{
+ hpsa_cmd_resolve_and_free(h, c);
+ cmd->scsi_done(cmd);
+}
+
+static void hpsa_retry_cmd(struct ctlr_info *h, struct CommandList *c)
+{
+ INIT_WORK(&c->work, hpsa_command_resubmit_worker);
+ queue_work_on(raw_smp_processor_id(), h->resubmit_wq, &c->work);
+}
+
+static void hpsa_set_scsi_cmd_aborted(struct scsi_cmnd *cmd)
+{
+ cmd->result = DID_ABORT << 16;
+}
+
+static void hpsa_cmd_abort_and_free(struct ctlr_info *h, struct CommandList *c,
+ struct scsi_cmnd *cmd)
+{
+ hpsa_set_scsi_cmd_aborted(cmd);
+ dev_warn(&h->pdev->dev, "CDB %16phN was aborted with status 0x%x\n",
+ c->Request.CDB, c->err_info->ScsiStatus);
+ hpsa_cmd_resolve_and_free(h, c);
+}
+
static void process_ioaccel2_completion(struct ctlr_info *h,
struct CommandList *c, struct scsi_cmnd *cmd,
struct hpsa_scsi_dev_t *dev)
/* check for good status */
if (likely(c2->error_data.serv_response == 0 &&
- c2->error_data.status == 0)) {
- cmd_free(h, c);
- cmd->scsi_done(cmd);
- return;
- }
+ c2->error_data.status == 0))
+ return hpsa_cmd_free_and_done(h, c, cmd);
- /* Any RAID offload error results in retry which will use
+ /*
+ * Any RAID offload error results in retry which will use
* the normal I/O path so the controller can handle whatever's
* wrong.
*/
- if (is_logical_dev_addr_mode(dev->scsi3addr) &&
+ if (is_logical_device(dev) &&
c2->error_data.serv_response ==
IOACCEL2_SERV_RESPONSE_FAILURE) {
if (c2->error_data.status ==
IOACCEL2_STATUS_SR_IOACCEL_DISABLED)
dev->offload_enabled = 0;
- goto retry_cmd;
+
+ return hpsa_retry_cmd(h, c);
}
if (handle_ioaccel_mode2_error(h, c, cmd, c2))
- goto retry_cmd;
+ return hpsa_retry_cmd(h, c);
- cmd_free(h, c);
- cmd->scsi_done(cmd);
- return;
+ return hpsa_cmd_free_and_done(h, c, cmd);
+}
-retry_cmd:
- INIT_WORK(&c->work, hpsa_command_resubmit_worker);
- queue_work_on(raw_smp_processor_id(), h->resubmit_wq, &c->work);
+/* Returns 0 on success, < 0 otherwise. */
+static int hpsa_evaluate_tmf_status(struct ctlr_info *h,
+ struct CommandList *cp)
+{
+ u8 tmf_status = cp->err_info->ScsiStatus;
+
+ switch (tmf_status) {
+ case CISS_TMF_COMPLETE:
+ /*
+ * CISS_TMF_COMPLETE never happens, instead,
+ * ei->CommandStatus == 0 for this case.
+ */
+ case CISS_TMF_SUCCESS:
+ return 0;
+ case CISS_TMF_INVALID_FRAME:
+ case CISS_TMF_NOT_SUPPORTED:
+ case CISS_TMF_FAILED:
+ case CISS_TMF_WRONG_LUN:
+ case CISS_TMF_OVERLAPPED_TAG:
+ break;
+ default:
+ dev_warn(&h->pdev->dev, "Unknown TMF status: 0x%02x\n",
+ tmf_status);
+ break;
+ }
+ return -tmf_status;
}
static void complete_scsi_command(struct CommandList *cp)
struct ctlr_info *h;
struct ErrorInfo *ei;
struct hpsa_scsi_dev_t *dev;
+ struct io_accel2_cmd *c2;
- unsigned char sense_key;
- unsigned char asc; /* additional sense code */
- unsigned char ascq; /* additional sense code qualifier */
+ u8 sense_key;
+ u8 asc; /* additional sense code */
+ u8 ascq; /* additional sense code qualifier */
unsigned long sense_data_size;
ei = cp->err_info;
cmd = cp->scsi_cmd;
h = cp->h;
dev = cmd->device->hostdata;
+ c2 = &h->ioaccel2_cmd_pool[cp->cmdindex];
scsi_dma_unmap(cmd); /* undo the DMA mappings */
if ((cp->cmd_type == CMD_SCSI) &&
(le16_to_cpu(cp->Header.SGTotal) > h->max_cmd_sg_entries))
hpsa_unmap_sg_chain_block(h, cp);
+ if ((cp->cmd_type == CMD_IOACCEL2) &&
+ (c2->sg[0].chain_indicator == IOACCEL2_CHAIN))
+ hpsa_unmap_ioaccel2_sg_chain_block(h, c2);
+
cmd->result = (DID_OK << 16); /* host byte */
cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */
if (cp->cmd_type == CMD_IOACCEL2 || cp->cmd_type == CMD_IOACCEL1)
atomic_dec(&cp->phys_disk->ioaccel_cmds_out);
- if (cp->cmd_type == CMD_IOACCEL2)
- return process_ioaccel2_completion(h, cp, cmd, dev);
-
- cmd->result |= ei->ScsiStatus;
+ /*
+ * We check for lockup status here as it may be set for
+ * CMD_SCSI, CMD_IOACCEL1 and CMD_IOACCEL2 commands by
+ * fail_all_oustanding_cmds()
+ */
+ if (unlikely(ei->CommandStatus == CMD_CTLR_LOCKUP)) {
+ /* DID_NO_CONNECT will prevent a retry */
+ cmd->result = DID_NO_CONNECT << 16;
+ return hpsa_cmd_free_and_done(h, cp, cmd);
+ }
- scsi_set_resid(cmd, ei->ResidualCnt);
- if (ei->CommandStatus == 0) {
- if (cp->cmd_type == CMD_IOACCEL1)
- atomic_dec(&cp->phys_disk->ioaccel_cmds_out);
- cmd_free(h, cp);
- cmd->scsi_done(cmd);
- return;
+ if ((unlikely(hpsa_is_pending_event(cp)))) {
+ if (cp->reset_pending)
+ return hpsa_cmd_resolve_and_free(h, cp);
+ if (cp->abort_pending)
+ return hpsa_cmd_abort_and_free(h, cp, cmd);
}
- /* copy the sense data */
- if (SCSI_SENSE_BUFFERSIZE < sizeof(ei->SenseInfo))
- sense_data_size = SCSI_SENSE_BUFFERSIZE;
- else
- sense_data_size = sizeof(ei->SenseInfo);
- if (ei->SenseLen < sense_data_size)
- sense_data_size = ei->SenseLen;
+ if (cp->cmd_type == CMD_IOACCEL2)
+ return process_ioaccel2_completion(h, cp, cmd, dev);
- memcpy(cmd->sense_buffer, ei->SenseInfo, sense_data_size);
+ scsi_set_resid(cmd, ei->ResidualCnt);
+ if (ei->CommandStatus == 0)
+ return hpsa_cmd_free_and_done(h, cp, cmd);
/* For I/O accelerator commands, copy over some fields to the normal
* CISS header used below for error handling.
* the normal I/O path so the controller can handle whatever's
* wrong.
*/
- if (is_logical_dev_addr_mode(dev->scsi3addr)) {
+ if (is_logical_device(dev)) {
if (ei->CommandStatus == CMD_IOACCEL_DISABLED)
dev->offload_enabled = 0;
- INIT_WORK(&cp->work, hpsa_command_resubmit_worker);
- queue_work_on(raw_smp_processor_id(),
- h->resubmit_wq, &cp->work);
- return;
+ return hpsa_retry_cmd(h, cp);
}
}
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];
- }
+ cmd->result |= ei->ScsiStatus;
+ /* copy the sense data */
+ if (SCSI_SENSE_BUFFERSIZE < sizeof(ei->SenseInfo))
+ sense_data_size = SCSI_SENSE_BUFFERSIZE;
+ else
+ sense_data_size = sizeof(ei->SenseInfo);
+ if (ei->SenseLen < sense_data_size)
+ sense_data_size = ei->SenseLen;
+ memcpy(cmd->sense_buffer, ei->SenseInfo, sense_data_size);
+ if (ei->ScsiStatus)
+ decode_sense_data(ei->SenseInfo, sense_data_size,
+ &sense_key, &asc, &ascq);
if (ei->ScsiStatus == SAM_STAT_CHECK_CONDITION) {
if (sense_key == ABORTED_COMMAND) {
cmd->result |= DID_SOFT_ERROR << 16;
cp->Request.CDB);
break;
case CMD_ABORTED:
- cmd->result = DID_ABORT << 16;
- dev_warn(&h->pdev->dev, "CDB %16phN was aborted with status 0x%x\n",
- cp->Request.CDB, ei->ScsiStatus);
- break;
+ /* Return now to avoid calling scsi_done(). */
+ return hpsa_cmd_abort_and_free(h, cp, cmd);
case CMD_ABORT_FAILED:
cmd->result = DID_ERROR << 16;
dev_warn(&h->pdev->dev, "CDB %16phN : abort failed\n",
cmd->result = DID_ERROR << 16;
dev_warn(&h->pdev->dev, "Command unabortable\n");
break;
+ case CMD_TMF_STATUS:
+ if (hpsa_evaluate_tmf_status(h, cp)) /* TMF failed? */
+ cmd->result = DID_ERROR << 16;
+ break;
case CMD_IOACCEL_DISABLED:
/* This only handles the direct pass-through case since RAID
* offload is handled above. Just attempt a retry.
dev_warn(&h->pdev->dev, "cp %p returned unknown status %x\n",
cp, ei->CommandStatus);
}
- cmd_free(h, cp);
- cmd->scsi_done(cmd);
+
+ return hpsa_cmd_free_and_done(h, cp, cmd);
}
static void hpsa_pci_unmap(struct pci_dev *pdev,
return 0;
}
-static inline void hpsa_scsi_do_simple_cmd_core(struct ctlr_info *h,
- struct CommandList *c)
+#define NO_TIMEOUT ((unsigned long) -1)
+#define DEFAULT_TIMEOUT 30000 /* milliseconds */
+static int hpsa_scsi_do_simple_cmd_core(struct ctlr_info *h,
+ struct CommandList *c, int reply_queue, unsigned long timeout_msecs)
{
DECLARE_COMPLETION_ONSTACK(wait);
c->waiting = &wait;
- enqueue_cmd_and_start_io(h, c);
- wait_for_completion(&wait);
+ __enqueue_cmd_and_start_io(h, c, reply_queue);
+ if (timeout_msecs == NO_TIMEOUT) {
+ /* TODO: get rid of this no-timeout thing */
+ wait_for_completion_io(&wait);
+ return IO_OK;
+ }
+ if (!wait_for_completion_io_timeout(&wait,
+ msecs_to_jiffies(timeout_msecs))) {
+ dev_warn(&h->pdev->dev, "Command timed out.\n");
+ return -ETIMEDOUT;
+ }
+ return IO_OK;
+}
+
+static int hpsa_scsi_do_simple_cmd(struct ctlr_info *h, struct CommandList *c,
+ int reply_queue, unsigned long timeout_msecs)
+{
+ if (unlikely(lockup_detected(h))) {
+ c->err_info->CommandStatus = CMD_CTLR_LOCKUP;
+ return IO_OK;
+ }
+ return hpsa_scsi_do_simple_cmd_core(h, c, reply_queue, timeout_msecs);
}
static u32 lockup_detected(struct ctlr_info *h)
return rc;
}
-static void hpsa_scsi_do_simple_cmd_core_if_no_lockup(struct ctlr_info *h,
- struct CommandList *c)
-{
- /* If controller lockup detected, fake a hardware error. */
- if (unlikely(lockup_detected(h)))
- c->err_info->CommandStatus = CMD_HARDWARE_ERR;
- else
- hpsa_scsi_do_simple_cmd_core(h, c);
-}
-
#define MAX_DRIVER_CMD_RETRIES 25
-static void hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info *h,
- struct CommandList *c, int data_direction)
+static int hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info *h,
+ struct CommandList *c, int data_direction, unsigned long timeout_msecs)
{
int backoff_time = 10, retry_count = 0;
+ int rc;
do {
memset(c->err_info, 0, sizeof(*c->err_info));
- hpsa_scsi_do_simple_cmd_core(h, c);
+ rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE,
+ timeout_msecs);
+ if (rc)
+ break;
retry_count++;
if (retry_count > 3) {
msleep(backoff_time);
check_for_busy(h, c)) &&
retry_count <= MAX_DRIVER_CMD_RETRIES);
hpsa_pci_unmap(h->pdev, c, 1, data_direction);
+ if (retry_count > MAX_DRIVER_CMD_RETRIES)
+ rc = -EIO;
+ return rc;
}
static void hpsa_print_cmd(struct ctlr_info *h, char *txt,
{
const struct ErrorInfo *ei = cp->err_info;
struct device *d = &cp->h->pdev->dev;
- const u8 *sd = ei->SenseInfo;
+ u8 sense_key, asc, ascq;
+ int sense_len;
switch (ei->CommandStatus) {
case CMD_TARGET_STATUS:
+ if (ei->SenseLen > sizeof(ei->SenseInfo))
+ sense_len = sizeof(ei->SenseInfo);
+ else
+ sense_len = ei->SenseLen;
+ decode_sense_data(ei->SenseInfo, sense_len,
+ &sense_key, &asc, &ascq);
hpsa_print_cmd(h, "SCSI status", cp);
if (ei->ScsiStatus == SAM_STAT_CHECK_CONDITION)
- dev_warn(d, "SCSI Status = 02, Sense key = %02x, ASC = %02x, ASCQ = %02x\n",
- sd[2] & 0x0f, sd[12], sd[13]);
+ dev_warn(d, "SCSI Status = 02, Sense key = 0x%02x, ASC = 0x%02x, ASCQ = 0x%02x\n",
+ sense_key, asc, ascq);
else
- dev_warn(d, "SCSI Status = %02x\n", ei->ScsiStatus);
+ dev_warn(d, "SCSI Status = 0x%02x\n", ei->ScsiStatus);
if (ei->ScsiStatus == 0)
dev_warn(d, "SCSI status is abnormally zero. "
"(probably indicates selection timeout "
case CMD_UNABORTABLE:
hpsa_print_cmd(h, "unabortable", cp);
break;
+ case CMD_CTLR_LOCKUP:
+ hpsa_print_cmd(h, "controller lockup detected", cp);
+ break;
default:
hpsa_print_cmd(h, "unknown status", cp);
dev_warn(d, "Unknown command status %x\n",
c = cmd_alloc(h);
- if (c == NULL) {
- dev_warn(&h->pdev->dev, "cmd_alloc returned NULL!\n");
- return -ENOMEM;
- }
-
if (fill_cmd(c, HPSA_INQUIRY, h, buf, bufsize,
page, scsi3addr, TYPE_CMD)) {
rc = -1;
goto out;
}
- hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ if (rc)
+ goto out;
ei = c->err_info;
if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
hpsa_scsi_interpret_error(h, c);
return rc;
}
-static int hpsa_bmic_ctrl_mode_sense(struct ctlr_info *h,
- unsigned char *scsi3addr, unsigned char page,
- struct bmic_controller_parameters *buf, size_t bufsize)
+static int hpsa_send_reset(struct ctlr_info *h, unsigned char *scsi3addr,
+ u8 reset_type, int reply_queue)
{
int rc = IO_OK;
struct CommandList *c;
struct ErrorInfo *ei;
c = cmd_alloc(h);
- if (c == NULL) { /* trouble... */
- dev_warn(&h->pdev->dev, "cmd_alloc returned NULL!\n");
- return -ENOMEM;
- }
- if (fill_cmd(c, BMIC_SENSE_CONTROLLER_PARAMETERS, h, buf, bufsize,
- page, scsi3addr, TYPE_CMD)) {
- rc = -1;
+
+ /* fill_cmd can't fail here, no data buffer to map. */
+ (void) fill_cmd(c, reset_type, h, NULL, 0, 0,
+ scsi3addr, TYPE_MSG);
+ rc = hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT);
+ if (rc) {
+ dev_warn(&h->pdev->dev, "Failed to send reset command\n");
goto out;
}
- hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
+ /* no unmap needed here because no data xfer. */
+
ei = c->err_info;
- if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
+ if (ei->CommandStatus != 0) {
hpsa_scsi_interpret_error(h, c);
rc = -1;
}
out:
cmd_free(h, c);
return rc;
+}
+
+static bool hpsa_cmd_dev_match(struct ctlr_info *h, struct CommandList *c,
+ struct hpsa_scsi_dev_t *dev,
+ unsigned char *scsi3addr)
+{
+ int i;
+ bool match = false;
+ struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex];
+ struct hpsa_tmf_struct *ac = (struct hpsa_tmf_struct *) c2;
+
+ if (hpsa_is_cmd_idle(c))
+ return false;
+
+ switch (c->cmd_type) {
+ case CMD_SCSI:
+ case CMD_IOCTL_PEND:
+ match = !memcmp(scsi3addr, &c->Header.LUN.LunAddrBytes,
+ sizeof(c->Header.LUN.LunAddrBytes));
+ break;
+
+ case CMD_IOACCEL1:
+ case CMD_IOACCEL2:
+ if (c->phys_disk == dev) {
+ /* HBA mode match */
+ match = true;
+ } else {
+ /* Possible RAID mode -- check each phys dev. */
+ /* FIXME: Do we need to take out a lock here? If
+ * so, we could just call hpsa_get_pdisk_of_ioaccel2()
+ * instead. */
+ for (i = 0; i < dev->nphysical_disks && !match; i++) {
+ /* FIXME: an alternate test might be
+ *
+ * match = dev->phys_disk[i]->ioaccel_handle
+ * == c2->scsi_nexus; */
+ match = dev->phys_disk[i] == c->phys_disk;
+ }
+ }
+ break;
+
+ case IOACCEL2_TMF:
+ for (i = 0; i < dev->nphysical_disks && !match; i++) {
+ match = dev->phys_disk[i]->ioaccel_handle ==
+ le32_to_cpu(ac->it_nexus);
+ }
+ break;
+
+ case 0: /* The command is in the middle of being initialized. */
+ match = false;
+ break;
+
+ default:
+ dev_err(&h->pdev->dev, "unexpected cmd_type: %d\n",
+ c->cmd_type);
+ BUG();
}
-static int hpsa_send_reset(struct ctlr_info *h, unsigned char *scsi3addr,
- u8 reset_type)
+ return match;
+}
+
+static int hpsa_do_reset(struct ctlr_info *h, struct hpsa_scsi_dev_t *dev,
+ unsigned char *scsi3addr, u8 reset_type, int reply_queue)
{
- int rc = IO_OK;
- struct CommandList *c;
- struct ErrorInfo *ei;
+ int i;
+ int rc = 0;
- c = cmd_alloc(h);
+ /* We can really only handle one reset at a time */
+ if (mutex_lock_interruptible(&h->reset_mutex) == -EINTR) {
+ dev_warn(&h->pdev->dev, "concurrent reset wait interrupted.\n");
+ return -EINTR;
+ }
- if (c == NULL) { /* trouble... */
- dev_warn(&h->pdev->dev, "cmd_alloc returned NULL!\n");
- return -ENOMEM;
+ BUG_ON(atomic_read(&dev->reset_cmds_out) != 0);
+
+ for (i = 0; i < h->nr_cmds; i++) {
+ struct CommandList *c = h->cmd_pool + i;
+ int refcount = atomic_inc_return(&c->refcount);
+
+ if (refcount > 1 && hpsa_cmd_dev_match(h, c, dev, scsi3addr)) {
+ unsigned long flags;
+
+ /*
+ * Mark the target command as having a reset pending,
+ * then lock a lock so that the command cannot complete
+ * while we're considering it. If the command is not
+ * idle then count it; otherwise revoke the event.
+ */
+ c->reset_pending = dev;
+ spin_lock_irqsave(&h->lock, flags); /* Implied MB */
+ if (!hpsa_is_cmd_idle(c))
+ atomic_inc(&dev->reset_cmds_out);
+ else
+ c->reset_pending = NULL;
+ spin_unlock_irqrestore(&h->lock, flags);
+ }
+
+ cmd_free(h, c);
}
- /* fill_cmd can't fail here, no data buffer to map. */
- (void) fill_cmd(c, HPSA_DEVICE_RESET_MSG, h, NULL, 0, 0,
- scsi3addr, TYPE_MSG);
- c->Request.CDB[1] = reset_type; /* fill_cmd defaults to LUN reset */
- hpsa_scsi_do_simple_cmd_core(h, c);
- /* no unmap needed here because no data xfer. */
+ rc = hpsa_send_reset(h, scsi3addr, reset_type, reply_queue);
+ if (!rc)
+ wait_event(h->event_sync_wait_queue,
+ atomic_read(&dev->reset_cmds_out) == 0 ||
+ lockup_detected(h));
- ei = c->err_info;
- if (ei->CommandStatus != 0) {
- hpsa_scsi_interpret_error(h, c);
- rc = -1;
+ if (unlikely(lockup_detected(h))) {
+ dev_warn(&h->pdev->dev,
+ "Controller lockup detected during reset wait\n");
+ rc = -ENODEV;
}
- cmd_free(h, c);
+
+ if (unlikely(rc))
+ atomic_set(&dev->reset_cmds_out, 0);
+
+ mutex_unlock(&h->reset_mutex);
return rc;
}
struct ErrorInfo *ei;
c = cmd_alloc(h);
- if (c == NULL) {
- dev_warn(&h->pdev->dev, "cmd_alloc returned NULL!\n");
- return -ENOMEM;
- }
+
if (fill_cmd(c, HPSA_GET_RAID_MAP, h, &this_device->raid_map,
sizeof(this_device->raid_map), 0,
scsi3addr, TYPE_CMD)) {
- dev_warn(&h->pdev->dev, "Out of memory in hpsa_get_raid_map()\n");
+ dev_warn(&h->pdev->dev, "hpsa_get_raid_map fill_cmd failed\n");
cmd_free(h, c);
- return -ENOMEM;
+ return -1;
}
- hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ if (rc)
+ goto out;
ei = c->err_info;
if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
hpsa_scsi_interpret_error(h, c);
- cmd_free(h, c);
- return -1;
+ rc = -1;
+ goto out;
}
cmd_free(h, c);
}
hpsa_debug_map_buff(h, rc, &this_device->raid_map);
return rc;
+out:
+ cmd_free(h, c);
+ return rc;
}
-static int hpsa_bmic_id_physical_device(struct ctlr_info *h,
+static int hpsa_bmic_sense_subsystem_information(struct ctlr_info *h,
unsigned char scsi3addr[], u16 bmic_device_index,
- struct bmic_identify_physical_device *buf, size_t bufsize)
+ struct bmic_sense_subsystem_info *buf, size_t bufsize)
{
int rc = IO_OK;
struct CommandList *c;
struct ErrorInfo *ei;
c = cmd_alloc(h);
- rc = fill_cmd(c, BMIC_IDENTIFY_PHYSICAL_DEVICE, h, buf, bufsize,
+
+ rc = fill_cmd(c, BMIC_SENSE_SUBSYSTEM_INFORMATION, h, buf, bufsize,
0, RAID_CTLR_LUNID, TYPE_CMD);
if (rc)
goto out;
c->Request.CDB[2] = bmic_device_index & 0xff;
c->Request.CDB[9] = (bmic_device_index >> 8) & 0xff;
- hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ if (rc)
+ goto out;
ei = c->err_info;
if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
hpsa_scsi_interpret_error(h, c);
return rc;
}
-static int hpsa_vpd_page_supported(struct ctlr_info *h,
- unsigned char scsi3addr[], u8 page)
+static int hpsa_bmic_id_controller(struct ctlr_info *h,
+ struct bmic_identify_controller *buf, size_t bufsize)
{
- int rc;
- int i;
- int pages;
- unsigned char *buf, bufsize;
+ int rc = IO_OK;
+ struct CommandList *c;
+ struct ErrorInfo *ei;
- buf = kzalloc(256, GFP_KERNEL);
- if (!buf)
- return 0;
+ c = cmd_alloc(h);
- /* Get the size of the page list first */
- rc = hpsa_scsi_do_inquiry(h, scsi3addr,
- VPD_PAGE | HPSA_VPD_SUPPORTED_PAGES,
- buf, HPSA_VPD_HEADER_SZ);
- if (rc != 0)
- goto exit_unsupported;
- pages = buf[3];
- if ((pages + HPSA_VPD_HEADER_SZ) <= 255)
+ rc = fill_cmd(c, BMIC_IDENTIFY_CONTROLLER, h, buf, bufsize,
+ 0, RAID_CTLR_LUNID, TYPE_CMD);
+ if (rc)
+ goto out;
+
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ if (rc)
+ goto out;
+ ei = c->err_info;
+ if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
+ hpsa_scsi_interpret_error(h, c);
+ rc = -1;
+ }
+out:
+ cmd_free(h, c);
+ return rc;
+}
+
+static int hpsa_bmic_id_physical_device(struct ctlr_info *h,
+ unsigned char scsi3addr[], u16 bmic_device_index,
+ struct bmic_identify_physical_device *buf, size_t bufsize)
+{
+ int rc = IO_OK;
+ struct CommandList *c;
+ struct ErrorInfo *ei;
+
+ c = cmd_alloc(h);
+ rc = fill_cmd(c, BMIC_IDENTIFY_PHYSICAL_DEVICE, h, buf, bufsize,
+ 0, RAID_CTLR_LUNID, TYPE_CMD);
+ if (rc)
+ goto out;
+
+ c->Request.CDB[2] = bmic_device_index & 0xff;
+ c->Request.CDB[9] = (bmic_device_index >> 8) & 0xff;
+
+ hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE,
+ NO_TIMEOUT);
+ ei = c->err_info;
+ if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
+ hpsa_scsi_interpret_error(h, c);
+ rc = -1;
+ }
+out:
+ cmd_free(h, c);
+
+ return rc;
+}
+
+static u64 hpsa_get_sas_address_from_report_physical(struct ctlr_info *h,
+ unsigned char *scsi3addr)
+{
+ struct ReportExtendedLUNdata *physdev;
+ u32 nphysicals;
+ u64 sa = 0;
+ int i;
+
+ physdev = kzalloc(sizeof(*physdev), GFP_KERNEL);
+ if (!physdev)
+ return 0;
+
+ if (hpsa_scsi_do_report_phys_luns(h, physdev, sizeof(*physdev))) {
+ dev_err(&h->pdev->dev, "report physical LUNs failed.\n");
+ kfree(physdev);
+ return 0;
+ }
+ nphysicals = get_unaligned_be32(physdev->LUNListLength) / 24;
+
+ for (i = 0; i < nphysicals; i++)
+ if (!memcmp(&physdev->LUN[i].lunid[0], scsi3addr, 8)) {
+ sa = get_unaligned_be64(&physdev->LUN[i].wwid[0]);
+ break;
+ }
+
+ kfree(physdev);
+
+ return sa;
+}
+
+static void hpsa_get_sas_address(struct ctlr_info *h, unsigned char *scsi3addr,
+ struct hpsa_scsi_dev_t *dev)
+{
+ int rc;
+ u64 sa = 0;
+
+ if (is_hba_lunid(scsi3addr)) {
+ struct bmic_sense_subsystem_info *ssi;
+
+ ssi = kzalloc(sizeof(*ssi), GFP_KERNEL);
+ if (ssi == NULL) {
+ dev_warn(&h->pdev->dev,
+ "%s: out of memory\n", __func__);
+ return;
+ }
+
+ rc = hpsa_bmic_sense_subsystem_information(h,
+ scsi3addr, 0, ssi, sizeof(*ssi));
+ if (rc == 0) {
+ sa = get_unaligned_be64(ssi->primary_world_wide_id);
+ h->sas_address = sa;
+ }
+
+ kfree(ssi);
+ } else
+ sa = hpsa_get_sas_address_from_report_physical(h, scsi3addr);
+
+ dev->sas_address = sa;
+}
+
+/* Get a device id from inquiry page 0x83 */
+static int hpsa_vpd_page_supported(struct ctlr_info *h,
+ unsigned char scsi3addr[], u8 page)
+{
+ int rc;
+ int i;
+ int pages;
+ unsigned char *buf, bufsize;
+
+ buf = kzalloc(256, GFP_KERNEL);
+ if (!buf)
+ return 0;
+
+ /* Get the size of the page list first */
+ rc = hpsa_scsi_do_inquiry(h, scsi3addr,
+ VPD_PAGE | HPSA_VPD_SUPPORTED_PAGES,
+ buf, HPSA_VPD_HEADER_SZ);
+ if (rc != 0)
+ goto exit_unsupported;
+ pages = buf[3];
+ if ((pages + HPSA_VPD_HEADER_SZ) <= 255)
bufsize = pages + HPSA_VPD_HEADER_SZ;
else
bufsize = 255;
this_device->offload_config = 0;
this_device->offload_enabled = 0;
+ this_device->offload_to_be_enabled = 0;
buf = kzalloc(64, GFP_KERNEL);
if (!buf)
if (hpsa_get_raid_map(h, scsi3addr, this_device))
this_device->offload_enabled = 0;
}
+ this_device->offload_to_be_enabled = this_device->offload_enabled;
out:
kfree(buf);
return;
/* Get the device id from inquiry page 0x83 */
static int hpsa_get_device_id(struct ctlr_info *h, unsigned char *scsi3addr,
- unsigned char *device_id, int buflen)
+ unsigned char *device_id, int index, int buflen)
{
int rc;
unsigned char *buf;
return -ENOMEM;
rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | 0x83, buf, 64);
if (rc == 0)
- memcpy(device_id, &buf[8], buflen);
+ memcpy(device_id, &buf[index], buflen);
+
kfree(buf);
+
return rc != 0;
}
struct ErrorInfo *ei;
c = cmd_alloc(h);
- if (c == NULL) { /* trouble... */
- dev_err(&h->pdev->dev, "cmd_alloc returned NULL!\n");
- return -1;
- }
+
/* address the controller */
memset(scsi3addr, 0, sizeof(scsi3addr));
if (fill_cmd(c, logical ? HPSA_REPORT_LOG : HPSA_REPORT_PHYS, h,
}
if (extended_response)
c->Request.CDB[1] = extended_response;
- hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ if (rc)
+ goto out;
ei = c->err_info;
if (ei->CommandStatus != 0 &&
ei->CommandStatus != CMD_DATA_UNDERRUN) {
unsigned char scsi3addr[])
{
struct CommandList *c;
- unsigned char *sense, sense_key, asc, ascq;
- int ldstat = 0;
+ unsigned char *sense;
+ u8 sense_key, asc, ascq;
+ int sense_len;
+ int rc, ldstat = 0;
u16 cmd_status;
u8 scsi_status;
#define ASC_LUN_NOT_READY 0x04
#define ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ 0x02
c = cmd_alloc(h);
- if (!c)
- return 0;
+
(void) fill_cmd(c, TEST_UNIT_READY, h, NULL, 0, 0, scsi3addr, TYPE_CMD);
- hpsa_scsi_do_simple_cmd_core(h, c);
+ rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT);
+ if (rc) {
+ cmd_free(h, c);
+ return 0;
+ }
sense = c->err_info->SenseInfo;
- sense_key = sense[2];
- asc = sense[12];
- ascq = sense[13];
+ if (c->err_info->SenseLen > sizeof(c->err_info->SenseInfo))
+ sense_len = sizeof(c->err_info->SenseInfo);
+ else
+ sense_len = c->err_info->SenseLen;
+ decode_sense_data(sense, sense_len, &sense_key, &asc, &ascq);
cmd_status = c->err_info->CommandStatus;
scsi_status = c->err_info->ScsiStatus;
cmd_free(h, c);
/* Keep volume offline in certain cases: */
switch (ldstat) {
case HPSA_LV_UNDERGOING_ERASE:
+ case HPSA_LV_NOT_AVAILABLE:
case HPSA_LV_UNDERGOING_RPI:
case HPSA_LV_PENDING_RPI:
case HPSA_LV_ENCRYPTED_NO_KEY:
return 0;
}
+/*
+ * Find out if a logical device supports aborts by simply trying one.
+ * Smart Array may claim not to support aborts on logical drives, but
+ * if a MSA2000 * is connected, the drives on that will be presented
+ * by the Smart Array as logical drives, and aborts may be sent to
+ * those devices successfully. So the simplest way to find out is
+ * to simply try an abort and see how the device responds.
+ */
+static int hpsa_device_supports_aborts(struct ctlr_info *h,
+ unsigned char *scsi3addr)
+{
+ struct CommandList *c;
+ struct ErrorInfo *ei;
+ int rc = 0;
+
+ u64 tag = (u64) -1; /* bogus tag */
+
+ /* Assume that physical devices support aborts */
+ if (!is_logical_dev_addr_mode(scsi3addr))
+ return 1;
+
+ c = cmd_alloc(h);
+
+ (void) fill_cmd(c, HPSA_ABORT_MSG, h, &tag, 0, 0, scsi3addr, TYPE_MSG);
+ (void) hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT);
+ /* no unmap needed here because no data xfer. */
+ ei = c->err_info;
+ switch (ei->CommandStatus) {
+ case CMD_INVALID:
+ rc = 0;
+ break;
+ case CMD_UNABORTABLE:
+ case CMD_ABORT_FAILED:
+ rc = 1;
+ break;
+ case CMD_TMF_STATUS:
+ rc = hpsa_evaluate_tmf_status(h, c);
+ break;
+ default:
+ rc = 0;
+ break;
+ }
+ cmd_free(h, c);
+ return rc;
+}
+
+static void sanitize_inquiry_string(unsigned char *s, int len)
+{
+ bool terminated = false;
+
+ for (; len > 0; (--len, ++s)) {
+ if (*s == 0)
+ terminated = true;
+ if (terminated || *s < 0x20 || *s > 0x7e)
+ *s = ' ';
+ }
+}
+
static int hpsa_update_device_info(struct ctlr_info *h,
unsigned char scsi3addr[], struct hpsa_scsi_dev_t *this_device,
unsigned char *is_OBDR_device)
unsigned char *inq_buff;
unsigned char *obdr_sig;
+ int rc = 0;
inq_buff = kzalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL);
- if (!inq_buff)
+ if (!inq_buff) {
+ rc = -ENOMEM;
goto bail_out;
+ }
/* Do an inquiry to the device to see what it is. */
if (hpsa_scsi_do_inquiry(h, scsi3addr, 0, inq_buff,
/* Inquiry failed (msg printed already) */
dev_err(&h->pdev->dev,
"hpsa_update_device_info: inquiry failed\n");
+ rc = -EIO;
goto bail_out;
}
+ sanitize_inquiry_string(&inq_buff[8], 8);
+ sanitize_inquiry_string(&inq_buff[16], 16);
+
this_device->devtype = (inq_buff[0] & 0x1f);
memcpy(this_device->scsi3addr, scsi3addr, 8);
memcpy(this_device->vendor, &inq_buff[8],
sizeof(this_device->model));
memset(this_device->device_id, 0,
sizeof(this_device->device_id));
- hpsa_get_device_id(h, scsi3addr, this_device->device_id,
+ hpsa_get_device_id(h, scsi3addr, this_device->device_id, 8,
sizeof(this_device->device_id));
if (this_device->devtype == TYPE_DISK &&
this_device->raid_level = RAID_UNKNOWN;
this_device->offload_config = 0;
this_device->offload_enabled = 0;
+ this_device->offload_to_be_enabled = 0;
+ this_device->hba_ioaccel_enabled = 0;
this_device->volume_offline = 0;
this_device->queue_depth = h->nr_cmds;
}
strncmp(obdr_sig, OBDR_TAPE_SIG,
OBDR_SIG_LEN) == 0);
}
-
kfree(inq_buff);
return 0;
bail_out:
kfree(inq_buff);
- return 1;
+ return rc;
}
-static unsigned char *ext_target_model[] = {
- "MSA2012",
- "MSA2024",
- "MSA2312",
- "MSA2324",
- "P2000 G3 SAS",
- "MSA 2040 SAS",
- NULL,
-};
-
-static int is_ext_target(struct ctlr_info *h, struct hpsa_scsi_dev_t *device)
+static void hpsa_update_device_supports_aborts(struct ctlr_info *h,
+ struct hpsa_scsi_dev_t *dev, u8 *scsi3addr)
{
- int i;
-
- for (i = 0; ext_target_model[i]; i++)
- if (strncmp(device->model, ext_target_model[i],
- strlen(ext_target_model[i])) == 0)
- return 1;
- return 0;
+ unsigned long flags;
+ int rc, entry;
+ /*
+ * See if this device supports aborts. If we already know
+ * the device, we already know if it supports aborts, otherwise
+ * we have to find out if it supports aborts by trying one.
+ */
+ spin_lock_irqsave(&h->devlock, flags);
+ rc = hpsa_scsi_find_entry(dev, h->dev, h->ndevices, &entry);
+ if ((rc == DEVICE_SAME || rc == DEVICE_UPDATED) &&
+ entry >= 0 && entry < h->ndevices) {
+ dev->supports_aborts = h->dev[entry]->supports_aborts;
+ spin_unlock_irqrestore(&h->devlock, flags);
+ } else {
+ spin_unlock_irqrestore(&h->devlock, flags);
+ dev->supports_aborts =
+ hpsa_device_supports_aborts(h, scsi3addr);
+ if (dev->supports_aborts < 0)
+ dev->supports_aborts = 0;
+ }
}
-/* Helper function to assign bus, target, lun mapping of devices.
- * Puts non-external target logical volumes on bus 0, external target logical
- * volumes on bus 1, physical devices on bus 2. and the hba on bus 3.
+/*
+ * Helper function to assign bus, target, lun mapping of devices.
* Logical drive target and lun are assigned at this time, but
* physical device lun and target assignment are deferred (assigned
* in hpsa_find_target_lun, called by hpsa_scsi_add_entry.)
- */
+*/
static void figure_bus_target_lun(struct ctlr_info *h,
u8 *lunaddrbytes, struct hpsa_scsi_dev_t *device)
{
- u32 lunid = le32_to_cpu(*((__le32 *) lunaddrbytes));
+ u32 lunid = get_unaligned_le32(lunaddrbytes);
if (!is_logical_dev_addr_mode(lunaddrbytes)) {
/* physical device, target and lun filled in later */
if (is_hba_lunid(lunaddrbytes))
- hpsa_set_bus_target_lun(device, 3, 0, lunid & 0x3fff);
+ hpsa_set_bus_target_lun(device,
+ HPSA_HBA_BUS, 0, lunid & 0x3fff);
else
/* defer target, lun assignment for physical devices */
- hpsa_set_bus_target_lun(device, 2, -1, -1);
+ hpsa_set_bus_target_lun(device,
+ HPSA_PHYSICAL_DEVICE_BUS, -1, -1);
return;
}
/* It's a logical device */
- if (is_ext_target(h, device)) {
- /* external target way, put logicals on bus 1
- * and match target/lun numbers box
- * reports, other smart array, bus 0, target 0, match lunid
- */
+ if (device->external) {
hpsa_set_bus_target_lun(device,
- 1, (lunid >> 16) & 0x3fff, lunid & 0x00ff);
+ HPSA_EXTERNAL_RAID_VOLUME_BUS, (lunid >> 16) & 0x3fff,
+ lunid & 0x00ff);
return;
}
- hpsa_set_bus_target_lun(device, 0, 0, lunid & 0x3fff);
+ hpsa_set_bus_target_lun(device, HPSA_RAID_VOLUME_BUS,
+ 0, lunid & 0x3fff);
}
-/*
- * If there is no lun 0 on a target, linux won't find any devices.
- * For the external targets (arrays), we have to manually detect the enclosure
- * which is at lun zero, as CCISS_REPORT_PHYSICAL_LUNS doesn't report
- * it for some reason. *tmpdevice is the target we're adding,
- * this_device is a pointer into the current element of currentsd[]
- * that we're building up in update_scsi_devices(), below.
- * lunzerobits is a bitmap that tracks which targets already have a
- * lun 0 assigned.
- * Returns 1 if an enclosure was added, 0 if not.
- */
-static int add_ext_target_dev(struct ctlr_info *h,
- struct hpsa_scsi_dev_t *tmpdevice,
- struct hpsa_scsi_dev_t *this_device, u8 *lunaddrbytes,
- unsigned long lunzerobits[], int *n_ext_target_devs)
-{
- unsigned char scsi3addr[8];
-
- if (test_bit(tmpdevice->target, lunzerobits))
- return 0; /* There is already a lun 0 on this target. */
-
- if (!is_logical_dev_addr_mode(lunaddrbytes))
- return 0; /* It's the logical targets that may lack lun 0. */
-
- if (!is_ext_target(h, tmpdevice))
- return 0; /* Only external target devices have this problem. */
-
- if (tmpdevice->lun == 0) /* if lun is 0, then we have a lun 0. */
- return 0;
-
- memset(scsi3addr, 0, 8);
- scsi3addr[3] = tmpdevice->target;
- if (is_hba_lunid(scsi3addr))
- return 0; /* Don't add the RAID controller here. */
-
- if (is_scsi_rev_5(h))
- return 0; /* p1210m doesn't need to do this. */
-
- if (*n_ext_target_devs >= MAX_EXT_TARGETS) {
- dev_warn(&h->pdev->dev, "Maximum number of external "
- "target devices exceeded. Check your hardware "
- "configuration.");
- return 0;
- }
-
- if (hpsa_update_device_info(h, scsi3addr, this_device, NULL))
- return 0;
- (*n_ext_target_devs)++;
- hpsa_set_bus_target_lun(this_device,
- tmpdevice->bus, tmpdevice->target, 0);
- set_bit(tmpdevice->target, lunzerobits);
- return 1;
-}
/*
* Get address of physical disk used for an ioaccel2 mode command:
static int hpsa_get_pdisk_of_ioaccel2(struct ctlr_info *h,
struct CommandList *ioaccel2_cmd_to_abort, unsigned char *scsi3addr)
{
- struct ReportExtendedLUNdata *physicals = NULL;
- int responsesize = 24; /* size of physical extended response */
- int reportsize = sizeof(*physicals) + HPSA_MAX_PHYS_LUN * responsesize;
- u32 nphysicals = 0; /* number of reported physical devs */
- int found = 0; /* found match (1) or not (0) */
- u32 find; /* handle we need to match */
+ struct io_accel2_cmd *c2 =
+ &h->ioaccel2_cmd_pool[ioaccel2_cmd_to_abort->cmdindex];
+ unsigned long flags;
int i;
- struct scsi_cmnd *scmd; /* scsi command within request being aborted */
- struct hpsa_scsi_dev_t *d; /* device of request being aborted */
- struct io_accel2_cmd *c2a; /* ioaccel2 command to abort */
- __le32 it_nexus; /* 4 byte device handle for the ioaccel2 cmd */
- __le32 scsi_nexus; /* 4 byte device handle for the ioaccel2 cmd */
-
- if (ioaccel2_cmd_to_abort->cmd_type != CMD_IOACCEL2)
- return 0; /* no match */
-
- /* point to the ioaccel2 device handle */
- c2a = &h->ioaccel2_cmd_pool[ioaccel2_cmd_to_abort->cmdindex];
- if (c2a == NULL)
- return 0; /* no match */
-
- scmd = (struct scsi_cmnd *) ioaccel2_cmd_to_abort->scsi_cmd;
- if (scmd == NULL)
- return 0; /* no match */
- d = scmd->device->hostdata;
- if (d == NULL)
- return 0; /* no match */
+ spin_lock_irqsave(&h->devlock, flags);
+ for (i = 0; i < h->ndevices; i++)
+ if (h->dev[i]->ioaccel_handle == le32_to_cpu(c2->scsi_nexus)) {
+ memcpy(scsi3addr, h->dev[i]->scsi3addr,
+ sizeof(h->dev[i]->scsi3addr));
+ spin_unlock_irqrestore(&h->devlock, flags);
+ return 1;
+ }
+ spin_unlock_irqrestore(&h->devlock, flags);
+ return 0;
+}
- it_nexus = cpu_to_le32(d->ioaccel_handle);
- scsi_nexus = c2a->scsi_nexus;
- find = le32_to_cpu(c2a->scsi_nexus);
+static int figure_external_status(struct ctlr_info *h, int raid_ctlr_position,
+ int i, int nphysicals, int nlocal_logicals)
+{
+ /* In report logicals, local logicals are listed first,
+ * then any externals.
+ */
+ int logicals_start = nphysicals + (raid_ctlr_position == 0);
- if (h->raid_offload_debug > 0)
- dev_info(&h->pdev->dev,
- "%s: scsi_nexus:0x%08x device id: 0x%02x%02x%02x%02x %02x%02x%02x%02x %02x%02x%02x%02x %02x%02x%02x%02x\n",
- __func__, scsi_nexus,
- d->device_id[0], d->device_id[1], d->device_id[2],
- d->device_id[3], d->device_id[4], d->device_id[5],
- d->device_id[6], d->device_id[7], d->device_id[8],
- d->device_id[9], d->device_id[10], d->device_id[11],
- d->device_id[12], d->device_id[13], d->device_id[14],
- d->device_id[15]);
-
- /* Get the list of physical devices */
- physicals = kzalloc(reportsize, GFP_KERNEL);
- if (physicals == NULL)
- return 0;
- if (hpsa_scsi_do_report_phys_luns(h, physicals, reportsize)) {
- dev_err(&h->pdev->dev,
- "Can't lookup %s device handle: report physical LUNs failed.\n",
- "HP SSD Smart Path");
- kfree(physicals);
+ if (i == raid_ctlr_position)
return 0;
- }
- nphysicals = be32_to_cpu(*((__be32 *)physicals->LUNListLength)) /
- responsesize;
-
- /* find ioaccel2 handle in list of physicals: */
- for (i = 0; i < nphysicals; i++) {
- struct ext_report_lun_entry *entry = &physicals->LUN[i];
- /* handle is in bytes 28-31 of each lun */
- if (entry->ioaccel_handle != find)
- continue; /* didn't match */
- found = 1;
- memcpy(scsi3addr, entry->lunid, 8);
- if (h->raid_offload_debug > 0)
- dev_info(&h->pdev->dev,
- "%s: Searched h=0x%08x, Found h=0x%08x, scsiaddr 0x%8phN\n",
- __func__, find,
- entry->ioaccel_handle, scsi3addr);
- break; /* found it */
- }
+ if (i < logicals_start)
+ return 0;
- kfree(physicals);
- if (found)
- return 1;
- else
+ /* i is in logicals range, but still within local logicals */
+ if ((i - nphysicals - (raid_ctlr_position == 0)) < nlocal_logicals)
return 0;
+ return 1; /* it's an external lun */
}
+
/*
* 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
return NULL;
}
-static int hpsa_hba_mode_enabled(struct ctlr_info *h)
-{
- int rc;
- int hba_mode_enabled;
- struct bmic_controller_parameters *ctlr_params;
- ctlr_params = kzalloc(sizeof(struct bmic_controller_parameters),
- GFP_KERNEL);
-
- if (!ctlr_params)
- return -ENOMEM;
- rc = hpsa_bmic_ctrl_mode_sense(h, RAID_CTLR_LUNID, 0, ctlr_params,
- sizeof(struct bmic_controller_parameters));
- if (rc) {
- kfree(ctlr_params);
- return rc;
- }
-
- hba_mode_enabled =
- ((ctlr_params->nvram_flags & HBA_MODE_ENABLED_FLAG) != 0);
- kfree(ctlr_params);
- return hba_mode_enabled;
-}
-
/* get physical drive ioaccel handle and queue depth */
static void hpsa_get_ioaccel_drive_info(struct ctlr_info *h,
struct hpsa_scsi_dev_t *dev,
- u8 *lunaddrbytes,
+ struct ReportExtendedLUNdata *rlep, int rle_index,
struct bmic_identify_physical_device *id_phys)
{
int rc;
- struct ext_report_lun_entry *rle =
- (struct ext_report_lun_entry *) lunaddrbytes;
+ struct ext_report_lun_entry *rle = &rlep->LUN[rle_index];
dev->ioaccel_handle = rle->ioaccel_handle;
+ if ((rle->device_flags & 0x08) && dev->ioaccel_handle)
+ dev->hba_ioaccel_enabled = 1;
memset(id_phys, 0, sizeof(*id_phys));
- rc = hpsa_bmic_id_physical_device(h, lunaddrbytes,
- GET_BMIC_DRIVE_NUMBER(lunaddrbytes), id_phys,
+ rc = hpsa_bmic_id_physical_device(h, &rle->lunid[0],
+ GET_BMIC_DRIVE_NUMBER(&rle->lunid[0]), id_phys,
sizeof(*id_phys));
if (!rc)
/* Reserve space for FW operations */
DRIVE_CMDS_RESERVED_FOR_FW;
else
dev->queue_depth = DRIVE_QUEUE_DEPTH; /* conservative */
- atomic_set(&dev->ioaccel_cmds_out, 0);
}
-static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno)
+static void hpsa_get_path_info(struct hpsa_scsi_dev_t *this_device,
+ struct ReportExtendedLUNdata *rlep, int rle_index,
+ struct bmic_identify_physical_device *id_phys)
+{
+ struct ext_report_lun_entry *rle = &rlep->LUN[rle_index];
+
+ if ((rle->device_flags & 0x08) && this_device->ioaccel_handle)
+ this_device->hba_ioaccel_enabled = 1;
+
+ memcpy(&this_device->active_path_index,
+ &id_phys->active_path_number,
+ sizeof(this_device->active_path_index));
+ memcpy(&this_device->path_map,
+ &id_phys->redundant_path_present_map,
+ sizeof(this_device->path_map));
+ memcpy(&this_device->box,
+ &id_phys->alternate_paths_phys_box_on_port,
+ sizeof(this_device->box));
+ memcpy(&this_device->phys_connector,
+ &id_phys->alternate_paths_phys_connector,
+ sizeof(this_device->phys_connector));
+ memcpy(&this_device->bay,
+ &id_phys->phys_bay_in_box,
+ sizeof(this_device->bay));
+}
+
+/* get number of local logical disks. */
+static int hpsa_set_local_logical_count(struct ctlr_info *h,
+ struct bmic_identify_controller *id_ctlr,
+ u32 *nlocals)
+{
+ int rc;
+
+ if (!id_ctlr) {
+ dev_warn(&h->pdev->dev, "%s: id_ctlr buffer is NULL.\n",
+ __func__);
+ return -ENOMEM;
+ }
+ memset(id_ctlr, 0, sizeof(*id_ctlr));
+ rc = hpsa_bmic_id_controller(h, id_ctlr, sizeof(*id_ctlr));
+ if (!rc)
+ if (id_ctlr->configured_logical_drive_count < 256)
+ *nlocals = id_ctlr->configured_logical_drive_count;
+ else
+ *nlocals = le16_to_cpu(
+ id_ctlr->extended_logical_unit_count);
+ else
+ *nlocals = -1;
+ return rc;
+}
+
+
+static void hpsa_update_scsi_devices(struct ctlr_info *h)
{
/* the idea here is we could get notified
* that some devices have changed, so we do a report
struct ReportExtendedLUNdata *physdev_list = NULL;
struct ReportLUNdata *logdev_list = NULL;
struct bmic_identify_physical_device *id_phys = NULL;
+ struct bmic_identify_controller *id_ctlr = NULL;
u32 nphysicals = 0;
u32 nlogicals = 0;
+ u32 nlocal_logicals = 0;
u32 ndev_allocated = 0;
struct hpsa_scsi_dev_t **currentsd, *this_device, *tmpdevice;
int ncurrent = 0;
int i, n_ext_target_devs, ndevs_to_allocate;
int raid_ctlr_position;
- int rescan_hba_mode;
+ bool physical_device;
DECLARE_BITMAP(lunzerobits, MAX_EXT_TARGETS);
currentsd = kzalloc(sizeof(*currentsd) * HPSA_MAX_DEVICES, GFP_KERNEL);
logdev_list = kzalloc(sizeof(*logdev_list), GFP_KERNEL);
tmpdevice = kzalloc(sizeof(*tmpdevice), GFP_KERNEL);
id_phys = kzalloc(sizeof(*id_phys), GFP_KERNEL);
+ id_ctlr = kzalloc(sizeof(*id_ctlr), GFP_KERNEL);
if (!currentsd || !physdev_list || !logdev_list ||
- !tmpdevice || !id_phys) {
+ !tmpdevice || !id_phys || !id_ctlr) {
dev_err(&h->pdev->dev, "out of memory\n");
goto out;
}
memset(lunzerobits, 0, sizeof(lunzerobits));
- rescan_hba_mode = hpsa_hba_mode_enabled(h);
- if (rescan_hba_mode < 0)
- goto out;
-
- if (!h->hba_mode_enabled && rescan_hba_mode)
- dev_warn(&h->pdev->dev, "HBA mode enabled\n");
- else if (h->hba_mode_enabled && !rescan_hba_mode)
- dev_warn(&h->pdev->dev, "HBA mode disabled\n");
-
- h->hba_mode_enabled = rescan_hba_mode;
+ h->drv_req_rescan = 0; /* cancel scheduled rescan - we're doing it. */
if (hpsa_gather_lun_info(h, physdev_list, &nphysicals,
- logdev_list, &nlogicals))
+ logdev_list, &nlogicals)) {
+ h->drv_req_rescan = 1;
goto out;
+ }
+
+ /* Set number of local logicals (non PTRAID) */
+ if (hpsa_set_local_logical_count(h, id_ctlr, &nlocal_logicals)) {
+ dev_warn(&h->pdev->dev,
+ "%s: Can't determine number of local logical devices.\n",
+ __func__);
+ }
/* We might see up to the maximum number of logical and physical disks
* plus external target devices, and a device for the local RAID
if (!currentsd[i]) {
dev_warn(&h->pdev->dev, "out of memory at %s:%d\n",
__FILE__, __LINE__);
+ h->drv_req_rescan = 1;
goto out;
}
ndev_allocated++;
n_ext_target_devs = 0;
for (i = 0; i < nphysicals + nlogicals + 1; i++) {
u8 *lunaddrbytes, is_OBDR = 0;
+ int rc = 0;
+ int phys_dev_index = i - (raid_ctlr_position == 0);
+
+ physical_device = i < nphysicals + (raid_ctlr_position == 0);
/* Figure out where the LUN ID info is coming from */
lunaddrbytes = figure_lunaddrbytes(h, raid_ctlr_position,
i, nphysicals, nlogicals, physdev_list, logdev_list);
- /* skip masked physical devices. */
- if (lunaddrbytes[3] & 0xC0 &&
- i < nphysicals + (raid_ctlr_position == 0))
+
+ /* skip masked non-disk devices */
+ if (MASKED_DEVICE(lunaddrbytes) && physical_device &&
+ (physdev_list->LUN[phys_dev_index].device_flags & 0x01))
continue;
/* Get device type, vendor, model, device id */
- if (hpsa_update_device_info(h, lunaddrbytes, tmpdevice,
- &is_OBDR))
- continue; /* skip it if we can't talk to it. */
- figure_bus_target_lun(h, lunaddrbytes, tmpdevice);
- this_device = currentsd[ncurrent];
-
- /*
- * For external target devices, we have to insert a LUN 0 which
- * doesn't show up in CCISS_REPORT_PHYSICAL data, but there
- * is nonetheless an enclosure device there. We have to
- * present that otherwise linux won't find anything if
- * there is no lun 0.
- */
- if (add_ext_target_dev(h, tmpdevice, this_device,
- lunaddrbytes, lunzerobits,
- &n_ext_target_devs)) {
- ncurrent++;
- this_device = currentsd[ncurrent];
- }
+ rc = hpsa_update_device_info(h, lunaddrbytes, tmpdevice,
+ &is_OBDR);
+ if (rc == -ENOMEM) {
+ dev_warn(&h->pdev->dev,
+ "Out of memory, rescan deferred.\n");
+ h->drv_req_rescan = 1;
+ goto out;
+ }
+ if (rc) {
+ dev_warn(&h->pdev->dev,
+ "Inquiry failed, skipping device.\n");
+ continue;
+ }
+
+ /* Determine if this is a lun from an external target array */
+ tmpdevice->external =
+ figure_external_status(h, raid_ctlr_position, i,
+ nphysicals, nlocal_logicals);
+
+ figure_bus_target_lun(h, lunaddrbytes, tmpdevice);
+ hpsa_update_device_supports_aborts(h, tmpdevice, lunaddrbytes);
+ this_device = currentsd[ncurrent];
+
+ /* Turn on discovery_polling if there are ext target devices.
+ * Event-based change notification is unreliable for those.
+ */
+ if (!h->discovery_polling) {
+ if (tmpdevice->external) {
+ h->discovery_polling = 1;
+ dev_info(&h->pdev->dev,
+ "External target, activate discovery polling.\n");
+ }
+ }
+
*this_device = *tmpdevice;
+ this_device->physical_device = physical_device;
+
+ /*
+ * Expose all devices except for physical devices that
+ * are masked.
+ */
+ if (MASKED_DEVICE(lunaddrbytes) && this_device->physical_device)
+ this_device->expose_device = 0;
+ else
+ this_device->expose_device = 1;
+
+
+ /*
+ * Get the SAS address for physical devices that are exposed.
+ */
+ if (this_device->physical_device && this_device->expose_device)
+ hpsa_get_sas_address(h, lunaddrbytes, this_device);
switch (this_device->devtype) {
case TYPE_ROM:
ncurrent++;
break;
case TYPE_DISK:
- if (h->hba_mode_enabled) {
- /* never use raid mapper in HBA mode */
+ if (this_device->physical_device) {
+ /* The disk is in HBA mode. */
+ /* Never use RAID mapper in HBA mode. */
this_device->offload_enabled = 0;
- ncurrent++;
- break;
- } else if (h->acciopath_status) {
- if (i >= nphysicals) {
- ncurrent++;
- break;
- }
- } else {
- if (i < nphysicals)
- break;
- ncurrent++;
- break;
- }
- if (h->transMethod & CFGTBL_Trans_io_accel1 ||
- h->transMethod & CFGTBL_Trans_io_accel2) {
hpsa_get_ioaccel_drive_info(h, this_device,
- lunaddrbytes, id_phys);
- atomic_set(&this_device->ioaccel_cmds_out, 0);
- ncurrent++;
+ physdev_list, phys_dev_index, id_phys);
+ hpsa_get_path_info(this_device,
+ physdev_list, phys_dev_index, id_phys);
}
+ ncurrent++;
break;
case TYPE_TAPE:
case TYPE_MEDIUM_CHANGER:
+ case TYPE_ENCLOSURE:
ncurrent++;
break;
case TYPE_RAID:
if (ncurrent >= HPSA_MAX_DEVICES)
break;
}
- hpsa_update_log_drive_phys_drive_ptrs(h, currentsd, ncurrent);
- adjust_hpsa_scsi_table(h, hostno, currentsd, ncurrent);
+
+ if (h->sas_host == NULL) {
+ int rc = 0;
+
+ rc = hpsa_add_sas_host(h);
+ if (rc) {
+ dev_warn(&h->pdev->dev,
+ "Could not add sas host %d\n", rc);
+ goto out;
+ }
+ }
+
+ adjust_hpsa_scsi_table(h, currentsd, ncurrent);
out:
kfree(tmpdevice);
for (i = 0; i < ndev_allocated; i++)
kfree(currentsd);
kfree(physdev_list);
kfree(logdev_list);
+ kfree(id_ctlr);
kfree(id_phys);
}
struct scsi_cmnd *cmd)
{
struct scatterlist *sg;
- int use_sg, i, sg_index, chained;
+ int use_sg, i, sg_limit, chained, last_sg;
struct SGDescriptor *curr_sg;
BUG_ON(scsi_sg_count(cmd) > h->maxsgentries);
if (!use_sg)
goto sglist_finished;
+ /*
+ * If the number of entries is greater than the max for a single list,
+ * then we have a chained list; we will set up all but one entry in the
+ * first list (the last entry is saved for link information);
+ * otherwise, we don't have a chained list and we'll set up at each of
+ * the entries in the one list.
+ */
curr_sg = cp->SG;
- chained = 0;
- sg_index = 0;
- scsi_for_each_sg(cmd, sg, use_sg, i) {
- if (i == h->max_cmd_sg_entries - 1 &&
- use_sg > h->max_cmd_sg_entries) {
- chained = 1;
- curr_sg = h->cmd_sg_list[cp->cmdindex];
- sg_index = 0;
- }
+ chained = use_sg > h->max_cmd_sg_entries;
+ sg_limit = chained ? h->max_cmd_sg_entries - 1 : use_sg;
+ last_sg = scsi_sg_count(cmd) - 1;
+ scsi_for_each_sg(cmd, sg, sg_limit, i) {
hpsa_set_sg_descriptor(curr_sg, sg);
curr_sg++;
}
+ if (chained) {
+ /*
+ * Continue with the chained list. Set curr_sg to the chained
+ * list. Modify the limit to the total count less the entries
+ * we've already set up. Resume the scan at the list entry
+ * where the previous loop left off.
+ */
+ curr_sg = h->cmd_sg_list[cp->cmdindex];
+ sg_limit = use_sg - sg_limit;
+ for_each_sg(sg, sg, sg_limit, i) {
+ hpsa_set_sg_descriptor(curr_sg, sg);
+ curr_sg++;
+ }
+ }
+
/* Back the pointer up to the last entry and mark it as "last". */
- (--curr_sg)->Ext = cpu_to_le32(HPSA_SG_LAST);
+ (curr_sg - 1)->Ext = cpu_to_le32(HPSA_SG_LAST);
if (use_sg + chained > h->maxSG)
h->maxSG = use_sg + chained;
case READ_6:
case READ_12:
if (*cdb_len == 6) {
- block = (((u32) cdb[2]) << 8) | cdb[3];
+ block = get_unaligned_be16(&cdb[2]);
block_cnt = cdb[4];
+ if (block_cnt == 0)
+ block_cnt = 256;
} else {
BUG_ON(*cdb_len != 12);
- block = (((u32) cdb[2]) << 24) |
- (((u32) cdb[3]) << 16) |
- (((u32) cdb[4]) << 8) |
- cdb[5];
- block_cnt =
- (((u32) cdb[6]) << 24) |
- (((u32) cdb[7]) << 16) |
- (((u32) cdb[8]) << 8) |
- cdb[9];
+ block = get_unaligned_be32(&cdb[2]);
+ block_cnt = get_unaligned_be32(&cdb[6]);
}
if (block_cnt > 0xffff)
return IO_ACCEL_INELIGIBLE;
u32 len;
u32 total_len = 0;
- if (scsi_sg_count(cmd) > h->ioaccel_maxsg) {
- atomic_dec(&phys_disk->ioaccel_cmds_out);
- return IO_ACCEL_INELIGIBLE;
- }
+ BUG_ON(scsi_sg_count(cmd) > h->maxsgentries);
if (fixup_ioaccel_cdb(cdb, &cdb_len)) {
atomic_dec(&phys_disk->ioaccel_cmds_out);
}
if (use_sg) {
- BUG_ON(use_sg > IOACCEL2_MAXSGENTRIES);
curr_sg = cp->sg;
+ if (use_sg > h->ioaccel_maxsg) {
+ addr64 = le64_to_cpu(
+ h->ioaccel2_cmd_sg_list[c->cmdindex]->address);
+ curr_sg->address = cpu_to_le64(addr64);
+ curr_sg->length = 0;
+ curr_sg->reserved[0] = 0;
+ curr_sg->reserved[1] = 0;
+ curr_sg->reserved[2] = 0;
+ curr_sg->chain_indicator = 0x80;
+
+ curr_sg = h->ioaccel2_cmd_sg_list[c->cmdindex];
+ }
scsi_for_each_sg(cmd, sg, use_sg, i) {
addr64 = (u64) sg_dma_address(sg);
len = sg_dma_len(sg);
cp->Tag = cpu_to_le32(c->cmdindex << DIRECT_LOOKUP_SHIFT);
memcpy(cp->cdb, cdb, sizeof(cp->cdb));
- /* fill in sg elements */
- cp->sg_count = (u8) use_sg;
-
cp->data_len = cpu_to_le32(total_len);
cp->err_ptr = cpu_to_le64(c->busaddr +
offsetof(struct io_accel2_cmd, error_data));
cp->err_len = cpu_to_le32(sizeof(cp->error_data));
+ /* fill in sg elements */
+ if (use_sg > h->ioaccel_maxsg) {
+ cp->sg_count = 1;
+ cp->sg[0].length = cpu_to_le32(use_sg * sizeof(cp->sg[0]));
+ if (hpsa_map_ioaccel2_sg_chain_block(h, cp, c)) {
+ atomic_dec(&phys_disk->ioaccel_cmds_out);
+ scsi_dma_unmap(cmd);
+ return -1;
+ }
+ } else
+ cp->sg_count = (u8) use_sg;
+
enqueue_cmd_and_start_io(h, c);
return 0;
}
case WRITE_6:
is_write = 1;
case READ_6:
- first_block =
- (((u64) cmd->cmnd[2]) << 8) |
- cmd->cmnd[3];
+ first_block = get_unaligned_be16(&cmd->cmnd[2]);
block_cnt = cmd->cmnd[4];
if (block_cnt == 0)
block_cnt = 256;
dev->phys_disk[map_index]);
}
-/* Submit commands down the "normal" RAID stack path */
+/*
+ * Submit commands down the "normal" RAID stack path
+ * All callers to hpsa_ciss_submit must check lockup_detected
+ * beforehand, before (opt.) and after calling cmd_alloc
+ */
static int hpsa_ciss_submit(struct ctlr_info *h,
struct CommandList *c, struct scsi_cmnd *cmd,
unsigned char scsi3addr[])
/* 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);
}
if (hpsa_scatter_gather(h, c, cmd) < 0) { /* Fill SG list */
- cmd_free(h, c);
+ hpsa_cmd_resolve_and_free(h, c);
return SCSI_MLQUEUE_HOST_BUSY;
}
enqueue_cmd_and_start_io(h, c);
return 0;
}
+static void hpsa_cmd_init(struct ctlr_info *h, int index,
+ struct CommandList *c)
+{
+ dma_addr_t cmd_dma_handle, err_dma_handle;
+
+ /* Zero out all of commandlist except the last field, refcount */
+ memset(c, 0, offsetof(struct CommandList, refcount));
+ c->Header.tag = cpu_to_le64((u64) (index << DIRECT_LOOKUP_SHIFT));
+ cmd_dma_handle = h->cmd_pool_dhandle + index * sizeof(*c);
+ c->err_info = h->errinfo_pool + index;
+ memset(c->err_info, 0, sizeof(*c->err_info));
+ err_dma_handle = h->errinfo_pool_dhandle
+ + index * sizeof(*c->err_info);
+ c->cmdindex = index;
+ c->busaddr = (u32) cmd_dma_handle;
+ c->ErrDesc.Addr = cpu_to_le64((u64) err_dma_handle);
+ c->ErrDesc.Len = cpu_to_le32((u32) sizeof(*c->err_info));
+ c->h = h;
+ c->scsi_cmd = SCSI_CMD_IDLE;
+}
+
+static void hpsa_preinitialize_commands(struct ctlr_info *h)
+{
+ int i;
+
+ for (i = 0; i < h->nr_cmds; i++) {
+ struct CommandList *c = h->cmd_pool + i;
+
+ hpsa_cmd_init(h, i, c);
+ atomic_set(&c->refcount, 0);
+ }
+}
+
+static inline void hpsa_cmd_partial_init(struct ctlr_info *h, int index,
+ struct CommandList *c)
+{
+ dma_addr_t cmd_dma_handle = h->cmd_pool_dhandle + index * sizeof(*c);
+
+ BUG_ON(c->cmdindex != index);
+
+ memset(c->Request.CDB, 0, sizeof(c->Request.CDB));
+ memset(c->err_info, 0, sizeof(*c->err_info));
+ c->busaddr = (u32) cmd_dma_handle;
+}
+
+static int hpsa_ioaccel_submit(struct ctlr_info *h,
+ struct CommandList *c, struct scsi_cmnd *cmd,
+ unsigned char *scsi3addr)
+{
+ struct hpsa_scsi_dev_t *dev = cmd->device->hostdata;
+ int rc = IO_ACCEL_INELIGIBLE;
+
+ cmd->host_scribble = (unsigned char *) c;
+
+ if (dev->offload_enabled) {
+ hpsa_cmd_init(h, c->cmdindex, c);
+ c->cmd_type = CMD_SCSI;
+ c->scsi_cmd = cmd;
+ rc = hpsa_scsi_ioaccel_raid_map(h, c);
+ if (rc < 0) /* scsi_dma_map failed. */
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ } else if (dev->hba_ioaccel_enabled) {
+ hpsa_cmd_init(h, c->cmdindex, c);
+ c->cmd_type = CMD_SCSI;
+ c->scsi_cmd = cmd;
+ rc = hpsa_scsi_ioaccel_direct_map(h, c);
+ if (rc < 0) /* scsi_dma_map failed. */
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ }
+ return rc;
+}
+
static void hpsa_command_resubmit_worker(struct work_struct *work)
{
struct scsi_cmnd *cmd;
struct hpsa_scsi_dev_t *dev;
- struct CommandList *c =
- container_of(work, struct CommandList, work);
+ struct CommandList *c = container_of(work, struct CommandList, work);
cmd = c->scsi_cmd;
dev = cmd->device->hostdata;
if (!dev) {
cmd->result = DID_NO_CONNECT << 16;
- cmd->scsi_done(cmd);
- return;
+ return hpsa_cmd_free_and_done(c->h, c, cmd);
+ }
+ if (c->reset_pending)
+ return hpsa_cmd_resolve_and_free(c->h, c);
+ if (c->abort_pending)
+ return hpsa_cmd_abort_and_free(c->h, c, cmd);
+ if (c->cmd_type == CMD_IOACCEL2) {
+ struct ctlr_info *h = c->h;
+ struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex];
+ int rc;
+
+ if (c2->error_data.serv_response ==
+ IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL) {
+ rc = hpsa_ioaccel_submit(h, c, cmd, dev->scsi3addr);
+ if (rc == 0)
+ return;
+ if (rc == SCSI_MLQUEUE_HOST_BUSY) {
+ /*
+ * If we get here, it means dma mapping failed.
+ * Try again via scsi mid layer, which will
+ * then get SCSI_MLQUEUE_HOST_BUSY.
+ */
+ cmd->result = DID_IMM_RETRY << 16;
+ return hpsa_cmd_free_and_done(h, c, cmd);
+ }
+ /* else, fall thru and resubmit down CISS path */
+ }
}
+ hpsa_cmd_partial_init(c->h, c->cmdindex, c);
if (hpsa_ciss_submit(c->h, c, cmd, dev->scsi3addr)) {
/*
* If we get here, it means dma mapping failed. Try
* again via scsi mid layer, which will then get
* SCSI_MLQUEUE_HOST_BUSY.
+ *
+ * hpsa_ciss_submit will have already freed c
+ * if it encountered a dma mapping failure.
*/
cmd->result = DID_IMM_RETRY << 16;
cmd->scsi_done(cmd);
/* Get the ptr to our adapter structure out of cmd->host. */
h = sdev_to_hba(cmd->device);
+
+ BUG_ON(cmd->request->tag < 0);
+
dev = cmd->device->hostdata;
if (!dev) {
cmd->result = DID_NO_CONNECT << 16;
cmd->scsi_done(cmd);
return 0;
}
+
memcpy(scsi3addr, dev->scsi3addr, sizeof(scsi3addr));
if (unlikely(lockup_detected(h))) {
- cmd->result = DID_ERROR << 16;
- cmd->scsi_done(cmd);
- return 0;
- }
- c = cmd_alloc(h);
- if (c == NULL) { /* trouble... */
- dev_err(&h->pdev->dev, "cmd_alloc returned NULL!\n");
- return SCSI_MLQUEUE_HOST_BUSY;
- }
- if (unlikely(lockup_detected(h))) {
- cmd->result = DID_ERROR << 16;
- cmd_free(h, c);
+ cmd->result = DID_NO_CONNECT << 16;
cmd->scsi_done(cmd);
return 0;
}
+ c = cmd_tagged_alloc(h, cmd);
/*
* Call alternate submit routine for I/O accelerated commands.
if (likely(cmd->retries == 0 &&
cmd->request->cmd_type == REQ_TYPE_FS &&
h->acciopath_status)) {
-
- cmd->host_scribble = (unsigned char *) c;
- c->cmd_type = CMD_SCSI;
- c->scsi_cmd = cmd;
-
- if (dev->offload_enabled) {
- rc = hpsa_scsi_ioaccel_raid_map(h, c);
- if (rc == 0)
- return 0; /* Sent on ioaccel path */
- if (rc < 0) { /* scsi_dma_map failed. */
- cmd_free(h, c);
- return SCSI_MLQUEUE_HOST_BUSY;
- }
- } else if (dev->ioaccel_handle) {
- rc = hpsa_scsi_ioaccel_direct_map(h, c);
- if (rc == 0)
- return 0; /* Sent on direct map path */
- if (rc < 0) { /* scsi_dma_map failed. */
- cmd_free(h, c);
- return SCSI_MLQUEUE_HOST_BUSY;
- }
+ rc = hpsa_ioaccel_submit(h, c, cmd, scsi3addr);
+ if (rc == 0)
+ return 0;
+ if (rc == SCSI_MLQUEUE_HOST_BUSY) {
+ hpsa_cmd_resolve_and_free(h, c);
+ return SCSI_MLQUEUE_HOST_BUSY;
}
}
return hpsa_ciss_submit(h, c, cmd, scsi3addr);
if (unlikely(lockup_detected(h)))
return hpsa_scan_complete(h);
- hpsa_update_scsi_devices(h, h->scsi_host->host_no);
+ hpsa_update_scsi_devices(h);
hpsa_scan_complete(h);
}
return finished;
}
-static void hpsa_unregister_scsi(struct ctlr_info *h)
-{
- /* we are being forcibly unloaded, and may not refuse. */
- scsi_remove_host(h->scsi_host);
- scsi_host_put(h->scsi_host);
- h->scsi_host = NULL;
-}
-
-static int hpsa_register_scsi(struct ctlr_info *h)
+static int hpsa_scsi_host_alloc(struct ctlr_info *h)
{
struct Scsi_Host *sh;
- int error;
sh = scsi_host_alloc(&hpsa_driver_template, sizeof(h));
- if (sh == NULL)
- goto fail;
+ if (sh == NULL) {
+ dev_err(&h->pdev->dev, "scsi_host_alloc failed\n");
+ return -ENOMEM;
+ }
sh->io_port = 0;
sh->n_io_port = 0;
sh->max_cmd_len = MAX_COMMAND_SIZE;
sh->max_lun = HPSA_MAX_LUN;
sh->max_id = HPSA_MAX_LUN;
- sh->can_queue = h->nr_cmds -
- HPSA_CMDS_RESERVED_FOR_ABORTS -
- HPSA_CMDS_RESERVED_FOR_DRIVER -
- HPSA_MAX_CONCURRENT_PASSTHRUS;
+ sh->can_queue = h->nr_cmds - HPSA_NRESERVED_CMDS;
sh->cmd_per_lun = sh->can_queue;
sh->sg_tablesize = h->maxsgentries;
- h->scsi_host = sh;
+ sh->transportt = hpsa_sas_transport_template;
sh->hostdata[0] = (unsigned long) h;
sh->irq = h->intr[h->intr_mode];
sh->unique_id = sh->irq;
- error = scsi_add_host(sh, &h->pdev->dev);
- if (error)
- goto fail_host_put;
- scsi_scan_host(sh);
+
+ h->scsi_host = sh;
return 0;
+}
- fail_host_put:
- dev_err(&h->pdev->dev, "%s: scsi_add_host"
- " failed for controller %d\n", __func__, h->ctlr);
- scsi_host_put(sh);
- return error;
- fail:
- dev_err(&h->pdev->dev, "%s: scsi_host_alloc"
- " failed for controller %d\n", __func__, h->ctlr);
- return -ENOMEM;
+static int hpsa_scsi_add_host(struct ctlr_info *h)
+{
+ int rv;
+
+ rv = scsi_add_host(h->scsi_host, &h->pdev->dev);
+ if (rv) {
+ dev_err(&h->pdev->dev, "scsi_add_host failed\n");
+ return rv;
+ }
+ scsi_scan_host(h->scsi_host);
+ return 0;
}
-static int wait_for_device_to_become_ready(struct ctlr_info *h,
- unsigned char lunaddr[])
+/*
+ * The block layer has already gone to the trouble of picking out a unique,
+ * small-integer tag for this request. We use an offset from that value as
+ * an index to select our command block. (The offset allows us to reserve the
+ * low-numbered entries for our own uses.)
+ */
+static int hpsa_get_cmd_index(struct scsi_cmnd *scmd)
+{
+ int idx = scmd->request->tag;
+
+ if (idx < 0)
+ return idx;
+
+ /* Offset to leave space for internal cmds. */
+ return idx += HPSA_NRESERVED_CMDS;
+}
+
+/*
+ * Send a TEST_UNIT_READY command to the specified LUN using the specified
+ * reply queue; returns zero if the unit is ready, and non-zero otherwise.
+ */
+static int hpsa_send_test_unit_ready(struct ctlr_info *h,
+ struct CommandList *c, unsigned char lunaddr[],
+ int reply_queue)
+{
+ int rc;
+
+ /* Send the Test Unit Ready, fill_cmd can't fail, no mapping */
+ (void) fill_cmd(c, TEST_UNIT_READY, h,
+ NULL, 0, 0, lunaddr, TYPE_CMD);
+ rc = hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT);
+ if (rc)
+ return rc;
+ /* no unmap needed here because no data xfer. */
+
+ /* Check if the unit is already ready. */
+ if (c->err_info->CommandStatus == CMD_SUCCESS)
+ return 0;
+
+ /*
+ * The first command sent after reset will receive "unit attention" to
+ * indicate that the LUN has been reset...this is actually what we're
+ * looking for (but, success is good too).
+ */
+ 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))
+ return 0;
+
+ return 1;
+}
+
+/*
+ * Wait for a TEST_UNIT_READY command to complete, retrying as necessary;
+ * returns zero when the unit is ready, and non-zero when giving up.
+ */
+static int hpsa_wait_for_test_unit_ready(struct ctlr_info *h,
+ struct CommandList *c,
+ unsigned char lunaddr[], int reply_queue)
{
int rc;
int count = 0;
int waittime = 1; /* seconds */
- struct CommandList *c;
-
- c = cmd_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) {
+ for (count = 0; count < HPSA_TUR_RETRY_LIMIT; count++) {
- /* Wait for a bit. do this first, because if we send
+ /*
+ * Wait for a bit. do this first, because if we send
* the TUR right away, the reset will just abort it.
*/
msleep(1000 * waittime);
- count++;
- rc = 0; /* Device ready. */
+
+ rc = hpsa_send_test_unit_ready(h, c, lunaddr, reply_queue);
+ if (!rc)
+ break;
/* Increase wait time with each try, up to a point. */
if (waittime < HPSA_MAX_WAIT_INTERVAL_SECS)
- waittime = waittime * 2;
+ waittime *= 2;
- /* Send the Test Unit Ready, fill_cmd can't fail, no mapping */
- (void) fill_cmd(c, TEST_UNIT_READY, h,
- NULL, 0, 0, lunaddr, TYPE_CMD);
- hpsa_scsi_do_simple_cmd_core(h, c);
- /* no unmap needed here because no data xfer. */
+ dev_warn(&h->pdev->dev,
+ "waiting %d secs for device to become ready.\n",
+ waittime);
+ }
- if (c->err_info->CommandStatus == CMD_SUCCESS)
- break;
+ return rc;
+}
- 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;
+static int wait_for_device_to_become_ready(struct ctlr_info *h,
+ unsigned char lunaddr[],
+ int reply_queue)
+{
+ int first_queue;
+ int last_queue;
+ int rq;
+ int rc = 0;
+ struct CommandList *c;
+
+ c = cmd_alloc(h);
+
+ /*
+ * If no specific reply queue was requested, then send the TUR
+ * repeatedly, requesting a reply on each reply queue; otherwise execute
+ * the loop exactly once using only the specified queue.
+ */
+ if (reply_queue == DEFAULT_REPLY_QUEUE) {
+ first_queue = 0;
+ last_queue = h->nreply_queues - 1;
+ } else {
+ first_queue = reply_queue;
+ last_queue = reply_queue;
+ }
- dev_warn(&h->pdev->dev, "waiting %d secs "
- "for device to become ready.\n", waittime);
- rc = 1; /* device not ready. */
+ for (rq = first_queue; rq <= last_queue; rq++) {
+ rc = hpsa_wait_for_test_unit_ready(h, c, lunaddr, rq);
+ if (rc)
+ break;
}
if (rc)
int rc;
struct ctlr_info *h;
struct hpsa_scsi_dev_t *dev;
+ u8 reset_type;
+ char msg[48];
/* find the controller to which the command to be aborted was sent */
h = sdev_to_hba(scsicmd->device);
dev = scsicmd->device->hostdata;
if (!dev) {
- dev_err(&h->pdev->dev, "hpsa_eh_device_reset_handler: "
- "device lookup failed.\n");
+ dev_err(&h->pdev->dev, "%s: device lookup failed\n", __func__);
return FAILED;
}
- dev_warn(&h->pdev->dev, "resetting device %d:%d:%d:%d\n",
- h->scsi_host->host_no, dev->bus, dev->target, dev->lun);
- /* send a reset to the SCSI LUN which the command was sent to */
- rc = hpsa_send_reset(h, dev->scsi3addr, HPSA_RESET_TYPE_LUN);
- if (rc == 0 && wait_for_device_to_become_ready(h, dev->scsi3addr) == 0)
+
+ /* if controller locked up, we can guarantee command won't complete */
+ if (lockup_detected(h)) {
+ snprintf(msg, sizeof(msg),
+ "cmd %d RESET FAILED, lockup detected",
+ hpsa_get_cmd_index(scsicmd));
+ hpsa_show_dev_msg(KERN_WARNING, h, dev, msg);
+ return FAILED;
+ }
+
+ /* this reset request might be the result of a lockup; check */
+ if (detect_controller_lockup(h)) {
+ snprintf(msg, sizeof(msg),
+ "cmd %d RESET FAILED, new lockup detected",
+ hpsa_get_cmd_index(scsicmd));
+ hpsa_show_dev_msg(KERN_WARNING, h, dev, msg);
+ return FAILED;
+ }
+
+ /* Do not attempt on controller */
+ if (is_hba_lunid(dev->scsi3addr))
return SUCCESS;
- dev_warn(&h->pdev->dev, "resetting device failed.\n");
- return FAILED;
+ if (is_logical_dev_addr_mode(dev->scsi3addr))
+ reset_type = HPSA_DEVICE_RESET_MSG;
+ else
+ reset_type = HPSA_PHYS_TARGET_RESET;
+
+ sprintf(msg, "resetting %s",
+ reset_type == HPSA_DEVICE_RESET_MSG ? "logical " : "physical ");
+ hpsa_show_dev_msg(KERN_WARNING, h, dev, msg);
+
+ h->reset_in_progress = 1;
+
+ /* send a reset to the SCSI LUN which the command was sent to */
+ rc = hpsa_do_reset(h, dev, dev->scsi3addr, reset_type,
+ DEFAULT_REPLY_QUEUE);
+ sprintf(msg, "reset %s %s",
+ reset_type == HPSA_DEVICE_RESET_MSG ? "logical " : "physical ",
+ rc == 0 ? "completed successfully" : "failed");
+ hpsa_show_dev_msg(KERN_WARNING, h, dev, msg);
+ h->reset_in_progress = 0;
+ return rc == 0 ? SUCCESS : FAILED;
}
static void swizzle_abort_tag(u8 *tag)
}
static int hpsa_send_abort(struct ctlr_info *h, unsigned char *scsi3addr,
- struct CommandList *abort, int swizzle)
+ struct CommandList *abort, int reply_queue)
{
int rc = IO_OK;
struct CommandList *c;
__le32 tagupper, taglower;
c = cmd_alloc(h);
- if (c == NULL) { /* trouble... */
- dev_warn(&h->pdev->dev, "cmd_alloc returned NULL!\n");
- return -ENOMEM;
- }
/* fill_cmd can't fail here, no buffer to map */
- (void) fill_cmd(c, HPSA_ABORT_MSG, h, abort,
+ (void) fill_cmd(c, HPSA_ABORT_MSG, h, &abort->Header.tag,
0, 0, scsi3addr, TYPE_MSG);
- if (swizzle)
+ if (h->needs_abort_tags_swizzled)
swizzle_abort_tag(&c->Request.CDB[4]);
- hpsa_scsi_do_simple_cmd_core(h, c);
+ (void) hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT);
hpsa_get_tag(h, abort, &taglower, &tagupper);
- dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: do_simple_cmd_core completed.\n",
+ dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: do_simple_cmd(abort) completed.\n",
__func__, tagupper, taglower);
/* no unmap needed here because no data xfer. */
switch (ei->CommandStatus) {
case CMD_SUCCESS:
break;
+ case CMD_TMF_STATUS:
+ rc = hpsa_evaluate_tmf_status(h, c);
+ break;
case CMD_UNABORTABLE: /* Very common, don't make noise. */
rc = -1;
break;
return rc;
}
-/* ioaccel2 path firmware cannot handle abort task requests.
- * Change abort requests to physical target reset, and send to the
- * address of the physical disk used for the ioaccel 2 command.
- * Return 0 on success (IO_OK)
- * -1 on failure
- */
-
-static int hpsa_send_reset_as_abort_ioaccel2(struct ctlr_info *h,
- unsigned char *scsi3addr, struct CommandList *abort)
+static void setup_ioaccel2_abort_cmd(struct CommandList *c, struct ctlr_info *h,
+ struct CommandList *command_to_abort, int reply_queue)
{
- int rc = IO_OK;
- struct scsi_cmnd *scmd; /* scsi command within request being aborted */
- struct hpsa_scsi_dev_t *dev; /* device to which scsi cmd was sent */
- unsigned char phys_scsi3addr[8]; /* addr of phys disk with volume */
+ struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex];
+ struct hpsa_tmf_struct *ac = (struct hpsa_tmf_struct *) c2;
+ struct io_accel2_cmd *c2a =
+ &h->ioaccel2_cmd_pool[command_to_abort->cmdindex];
+ struct scsi_cmnd *scmd = command_to_abort->scsi_cmd;
+ struct hpsa_scsi_dev_t *dev = scmd->device->hostdata;
+
+ /*
+ * We're overlaying struct hpsa_tmf_struct on top of something which
+ * was allocated as a struct io_accel2_cmd, so we better be sure it
+ * actually fits, and doesn't overrun the error info space.
+ */
+ BUILD_BUG_ON(sizeof(struct hpsa_tmf_struct) >
+ sizeof(struct io_accel2_cmd));
+ BUG_ON(offsetof(struct io_accel2_cmd, error_data) <
+ offsetof(struct hpsa_tmf_struct, error_len) +
+ sizeof(ac->error_len));
+
+ c->cmd_type = IOACCEL2_TMF;
+ c->scsi_cmd = SCSI_CMD_BUSY;
+
+ /* Adjust the DMA address to point to the accelerated command buffer */
+ c->busaddr = (u32) h->ioaccel2_cmd_pool_dhandle +
+ (c->cmdindex * sizeof(struct io_accel2_cmd));
+ BUG_ON(c->busaddr & 0x0000007F);
+
+ memset(ac, 0, sizeof(*c2)); /* yes this is correct */
+ ac->iu_type = IOACCEL2_IU_TMF_TYPE;
+ ac->reply_queue = reply_queue;
+ ac->tmf = IOACCEL2_TMF_ABORT;
+ ac->it_nexus = cpu_to_le32(dev->ioaccel_handle);
+ memset(ac->lun_id, 0, sizeof(ac->lun_id));
+ ac->tag = cpu_to_le64(c->cmdindex << DIRECT_LOOKUP_SHIFT);
+ ac->abort_tag = cpu_to_le64(le32_to_cpu(c2a->Tag));
+ ac->error_ptr = cpu_to_le64(c->busaddr +
+ offsetof(struct io_accel2_cmd, error_data));
+ ac->error_len = cpu_to_le32(sizeof(c2->error_data));
+}
+
+/* ioaccel2 path firmware cannot handle abort task requests.
+ * Change abort requests to physical target reset, and send to the
+ * address of the physical disk used for the ioaccel 2 command.
+ * Return 0 on success (IO_OK)
+ * -1 on failure
+ */
+
+static int hpsa_send_reset_as_abort_ioaccel2(struct ctlr_info *h,
+ unsigned char *scsi3addr, struct CommandList *abort, int reply_queue)
+{
+ int rc = IO_OK;
+ struct scsi_cmnd *scmd; /* scsi command within request being aborted */
+ struct hpsa_scsi_dev_t *dev; /* device to which scsi cmd was sent */
+ unsigned char phys_scsi3addr[8]; /* addr of phys disk with volume */
unsigned char *psa = &phys_scsi3addr[0];
/* Get a pointer to the hpsa logical device. */
if (h->raid_offload_debug > 0)
dev_info(&h->pdev->dev,
- "Reset as abort: Abort requested on C%d:B%d:T%d:L%d scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
+ "scsi %d:%d:%d:%d %s scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
h->scsi_host->host_no, dev->bus, dev->target, dev->lun,
+ "Reset as abort",
scsi3addr[0], scsi3addr[1], scsi3addr[2], scsi3addr[3],
scsi3addr[4], scsi3addr[5], scsi3addr[6], scsi3addr[7]);
"Reset as abort: Resetting physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
psa[0], psa[1], psa[2], psa[3],
psa[4], psa[5], psa[6], psa[7]);
- rc = hpsa_send_reset(h, psa, HPSA_RESET_TYPE_TARGET);
+ rc = hpsa_do_reset(h, dev, psa, HPSA_RESET_TYPE_TARGET, reply_queue);
if (rc != 0) {
dev_warn(&h->pdev->dev,
"Reset as abort: Failed on physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
}
/* wait for device to recover */
- if (wait_for_device_to_become_ready(h, psa) != 0) {
+ if (wait_for_device_to_become_ready(h, psa, reply_queue) != 0) {
dev_warn(&h->pdev->dev,
"Reset as abort: Failed: Device never recovered from reset: 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
psa[0], psa[1], psa[2], psa[3],
return rc; /* success */
}
-/* Some Smart Arrays need the abort tag swizzled, and some don't. It's hard to
- * tell which kind we're dealing with, so we send the abort both ways. There
- * shouldn't be any collisions between swizzled and unswizzled tags due to the
- * way we construct our tags but we check anyway in case the assumptions which
- * make this true someday become false.
- */
+static int hpsa_send_abort_ioaccel2(struct ctlr_info *h,
+ struct CommandList *abort, int reply_queue)
+{
+ int rc = IO_OK;
+ struct CommandList *c;
+ __le32 taglower, tagupper;
+ struct hpsa_scsi_dev_t *dev;
+ struct io_accel2_cmd *c2;
+
+ dev = abort->scsi_cmd->device->hostdata;
+ if (!dev->offload_enabled && !dev->hba_ioaccel_enabled)
+ return -1;
+
+ c = cmd_alloc(h);
+ setup_ioaccel2_abort_cmd(c, h, abort, reply_queue);
+ c2 = &h->ioaccel2_cmd_pool[c->cmdindex];
+ (void) hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT);
+ hpsa_get_tag(h, abort, &taglower, &tagupper);
+ dev_dbg(&h->pdev->dev,
+ "%s: Tag:0x%08x:%08x: do_simple_cmd(ioaccel2 abort) completed.\n",
+ __func__, tagupper, taglower);
+ /* no unmap needed here because no data xfer. */
+
+ dev_dbg(&h->pdev->dev,
+ "%s: Tag:0x%08x:%08x: abort service response = 0x%02x.\n",
+ __func__, tagupper, taglower, c2->error_data.serv_response);
+ switch (c2->error_data.serv_response) {
+ case IOACCEL2_SERV_RESPONSE_TMF_COMPLETE:
+ case IOACCEL2_SERV_RESPONSE_TMF_SUCCESS:
+ rc = 0;
+ break;
+ case IOACCEL2_SERV_RESPONSE_TMF_REJECTED:
+ case IOACCEL2_SERV_RESPONSE_FAILURE:
+ case IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN:
+ rc = -1;
+ break;
+ default:
+ dev_warn(&h->pdev->dev,
+ "%s: Tag:0x%08x:%08x: unknown abort service response 0x%02x\n",
+ __func__, tagupper, taglower,
+ c2->error_data.serv_response);
+ rc = -1;
+ }
+ cmd_free(h, c);
+ dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: Finished.\n", __func__,
+ tagupper, taglower);
+ return rc;
+}
+
static int hpsa_send_abort_both_ways(struct ctlr_info *h,
- unsigned char *scsi3addr, struct CommandList *abort)
+ unsigned char *scsi3addr, struct CommandList *abort, int reply_queue)
{
- /* ioccelerator mode 2 commands should be aborted via the
+ /*
+ * ioccelerator mode 2 commands should be aborted via the
* accelerated path, since RAID path is unaware of these commands,
- * but underlying firmware can't handle abort TMF.
- * Change abort to physical device reset.
+ * but not all underlying firmware can handle abort TMF.
+ * Change abort to physical device reset when abort TMF is unsupported.
*/
- if (abort->cmd_type == CMD_IOACCEL2)
- return hpsa_send_reset_as_abort_ioaccel2(h, scsi3addr, abort);
+ if (abort->cmd_type == CMD_IOACCEL2) {
+ if (HPSATMF_IOACCEL_ENABLED & h->TMFSupportFlags)
+ return hpsa_send_abort_ioaccel2(h, abort,
+ reply_queue);
+ else
+ return hpsa_send_reset_as_abort_ioaccel2(h, scsi3addr,
+ abort, reply_queue);
+ }
+ return hpsa_send_abort(h, scsi3addr, abort, reply_queue);
+}
+
+/* Find out which reply queue a command was meant to return on */
+static int hpsa_extract_reply_queue(struct ctlr_info *h,
+ struct CommandList *c)
+{
+ if (c->cmd_type == CMD_IOACCEL2)
+ return h->ioaccel2_cmd_pool[c->cmdindex].reply_queue;
+ return c->Header.ReplyQueue;
+}
- return hpsa_send_abort(h, scsi3addr, abort, 0) &&
- hpsa_send_abort(h, scsi3addr, abort, 1);
+/*
+ * Limit concurrency of abort commands to prevent
+ * over-subscription of commands
+ */
+static inline int wait_for_available_abort_cmd(struct ctlr_info *h)
+{
+#define ABORT_CMD_WAIT_MSECS 5000
+ return !wait_event_timeout(h->abort_cmd_wait_queue,
+ atomic_dec_if_positive(&h->abort_cmds_available) >= 0,
+ msecs_to_jiffies(ABORT_CMD_WAIT_MSECS));
}
/* Send an abort for the specified command.
static int hpsa_eh_abort_handler(struct scsi_cmnd *sc)
{
- int i, rc;
+ int rc;
struct ctlr_info *h;
struct hpsa_scsi_dev_t *dev;
struct CommandList *abort; /* pointer to command to be aborted */
char msg[256]; /* For debug messaging. */
int ml = 0;
__le32 tagupper, taglower;
- int refcount;
+ int refcount, reply_queue;
- /* Find the controller of the command to be aborted */
- h = sdev_to_hba(sc->device);
- if (WARN(h == NULL,
- "ABORT REQUEST FAILED, Controller lookup failed.\n"))
+ if (sc == NULL)
return FAILED;
- if (lockup_detected(h))
+ if (sc->device == NULL)
return FAILED;
- /* Check that controller supports some kind of task abort */
- if (!(HPSATMF_PHYS_TASK_ABORT & h->TMFSupportFlags) &&
- !(HPSATMF_LOG_TASK_ABORT & h->TMFSupportFlags))
+ /* Find the controller of the command to be aborted */
+ h = sdev_to_hba(sc->device);
+ if (h == NULL)
return FAILED;
- memset(msg, 0, sizeof(msg));
- ml += sprintf(msg+ml, "ABORT REQUEST on C%d:B%d:T%d:L%llu ",
- h->scsi_host->host_no, sc->device->channel,
- sc->device->id, sc->device->lun);
-
/* Find the device of the command to be aborted */
dev = sc->device->hostdata;
if (!dev) {
return FAILED;
}
+ /* If controller locked up, we can guarantee command won't complete */
+ if (lockup_detected(h)) {
+ hpsa_show_dev_msg(KERN_WARNING, h, dev,
+ "ABORT FAILED, lockup detected");
+ return FAILED;
+ }
+
+ /* This is a good time to check if controller lockup has occurred */
+ if (detect_controller_lockup(h)) {
+ hpsa_show_dev_msg(KERN_WARNING, h, dev,
+ "ABORT FAILED, new lockup detected");
+ return FAILED;
+ }
+
+ /* Check that controller supports some kind of task abort */
+ if (!(HPSATMF_PHYS_TASK_ABORT & h->TMFSupportFlags) &&
+ !(HPSATMF_LOG_TASK_ABORT & h->TMFSupportFlags))
+ return FAILED;
+
+ memset(msg, 0, sizeof(msg));
+ ml += sprintf(msg+ml, "scsi %d:%d:%d:%llu %s %p",
+ h->scsi_host->host_no, sc->device->channel,
+ sc->device->id, sc->device->lun,
+ "Aborting command", sc);
+
/* Get SCSI command to be aborted */
abort = (struct CommandList *) sc->host_scribble;
if (abort == NULL) {
cmd_free(h, abort);
return SUCCESS;
}
+
+ /* Don't bother trying the abort if we know it won't work. */
+ if (abort->cmd_type != CMD_IOACCEL2 &&
+ abort->cmd_type != CMD_IOACCEL1 && !dev->supports_aborts) {
+ cmd_free(h, abort);
+ return FAILED;
+ }
+
+ /*
+ * Check that we're aborting the right command.
+ * It's possible the CommandList already completed and got re-used.
+ */
+ if (abort->scsi_cmd != sc) {
+ cmd_free(h, abort);
+ return SUCCESS;
+ }
+
+ abort->abort_pending = true;
hpsa_get_tag(h, abort, &taglower, &tagupper);
+ reply_queue = hpsa_extract_reply_queue(h, abort);
ml += sprintf(msg+ml, "Tag:0x%08x:%08x ", tagupper, taglower);
as = abort->scsi_cmd;
if (as != NULL)
- ml += sprintf(msg+ml, "Command:0x%x SN:0x%lx ",
- as->cmnd[0], as->serial_number);
- dev_dbg(&h->pdev->dev, "%s\n", msg);
- dev_warn(&h->pdev->dev, "Abort request on C%d:B%d:T%d:L%d\n",
- h->scsi_host->host_no, dev->bus, dev->target, dev->lun);
+ ml += sprintf(msg+ml,
+ "CDBLen: %d CDB: 0x%02x%02x... SN: 0x%lx ",
+ as->cmd_len, as->cmnd[0], as->cmnd[1],
+ as->serial_number);
+ dev_warn(&h->pdev->dev, "%s BEING SENT\n", msg);
+ hpsa_show_dev_msg(KERN_WARNING, h, dev, "Aborting command");
+
/*
* Command is in flight, or possibly already completed
* by the firmware (but not to the scsi mid layer) but we can't
* distinguish which. Send the abort down.
*/
- rc = hpsa_send_abort_both_ways(h, dev->scsi3addr, abort);
+ if (wait_for_available_abort_cmd(h)) {
+ dev_warn(&h->pdev->dev,
+ "%s FAILED, timeout waiting for an abort command to become available.\n",
+ msg);
+ cmd_free(h, abort);
+ return FAILED;
+ }
+ rc = hpsa_send_abort_both_ways(h, dev->scsi3addr, abort, reply_queue);
+ atomic_inc(&h->abort_cmds_available);
+ wake_up_all(&h->abort_cmd_wait_queue);
if (rc != 0) {
- dev_dbg(&h->pdev->dev, "%s Request FAILED.\n", msg);
- dev_warn(&h->pdev->dev, "FAILED abort on device C%d:B%d:T%d:L%d\n",
- h->scsi_host->host_no,
- dev->bus, dev->target, dev->lun);
+ dev_warn(&h->pdev->dev, "%s SENT, FAILED\n", msg);
+ hpsa_show_dev_msg(KERN_WARNING, h, dev,
+ "FAILED to abort command");
cmd_free(h, abort);
return FAILED;
}
- dev_info(&h->pdev->dev, "%s REQUEST SUCCEEDED.\n", msg);
+ dev_info(&h->pdev->dev, "%s SENT, SUCCESS\n", msg);
+ wait_event(h->event_sync_wait_queue,
+ abort->scsi_cmd != sc || lockup_detected(h));
+ cmd_free(h, abort);
+ return !lockup_detected(h) ? SUCCESS : FAILED;
+}
- /* If the abort(s) above completed and actually aborted the
- * command, then the command to be aborted should already be
- * completed. If not, wait around a bit more to see if they
- * manage to complete normally.
- */
-#define ABORT_COMPLETE_WAIT_SECS 30
- for (i = 0; i < ABORT_COMPLETE_WAIT_SECS * 10; i++) {
- refcount = atomic_read(&abort->refcount);
- if (refcount < 2) {
- cmd_free(h, abort);
- return SUCCESS;
- } else {
- msleep(100);
- }
+/*
+ * For operations with an associated SCSI command, a command block is allocated
+ * at init, and managed by cmd_tagged_alloc() and cmd_tagged_free() using the
+ * block request tag as an index into a table of entries. cmd_tagged_free() is
+ * the complement, although cmd_free() may be called instead.
+ */
+static struct CommandList *cmd_tagged_alloc(struct ctlr_info *h,
+ struct scsi_cmnd *scmd)
+{
+ int idx = hpsa_get_cmd_index(scmd);
+ struct CommandList *c = h->cmd_pool + idx;
+
+ if (idx < HPSA_NRESERVED_CMDS || idx >= h->nr_cmds) {
+ dev_err(&h->pdev->dev, "Bad block tag: %d not in [%d..%d]\n",
+ idx, HPSA_NRESERVED_CMDS, h->nr_cmds - 1);
+ /* The index value comes from the block layer, so if it's out of
+ * bounds, it's probably not our bug.
+ */
+ BUG();
}
- dev_warn(&h->pdev->dev, "%s FAILED. Aborted command has not completed after %d seconds.\n",
- msg, ABORT_COMPLETE_WAIT_SECS);
- cmd_free(h, abort);
- return FAILED;
+
+ atomic_inc(&c->refcount);
+ if (unlikely(!hpsa_is_cmd_idle(c))) {
+ /*
+ * We expect that the SCSI layer will hand us a unique tag
+ * value. Thus, there should never be a collision here between
+ * two requests...because if the selected command isn't idle
+ * then someone is going to be very disappointed.
+ */
+ dev_err(&h->pdev->dev,
+ "tag collision (tag=%d) in cmd_tagged_alloc().\n",
+ idx);
+ if (c->scsi_cmd != NULL)
+ scsi_print_command(c->scsi_cmd);
+ scsi_print_command(scmd);
+ }
+
+ hpsa_cmd_partial_init(h, idx, c);
+ return c;
+}
+
+static void cmd_tagged_free(struct ctlr_info *h, struct CommandList *c)
+{
+ /*
+ * Release our reference to the block. We don't need to do anything
+ * else to free it, because it is accessed by index. (There's no point
+ * in checking the result of the decrement, since we cannot guarantee
+ * that there isn't a concurrent abort which is also accessing it.)
+ */
+ (void)atomic_dec(&c->refcount);
}
/*
* 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.
+ * This function never gives up and returns NULL. If it hangs,
+ * another thread must call cmd_free() to free some tags.
*/
static struct CommandList *cmd_alloc(struct ctlr_info *h)
{
struct CommandList *c;
- int i;
- union u64bit temp64;
- dma_addr_t cmd_dma_handle, err_dma_handle;
- int refcount;
- unsigned long offset;
+ int refcount, i;
+ int offset = 0;
/*
* There is some *extremely* small but non-zero chance that that
* very unlucky thread might be starved anyway, never able to
* beat the other threads. In reality, this happens so
* infrequently as to be indistinguishable from never.
+ *
+ * Note that we start allocating commands before the SCSI host structure
+ * is initialized. Since the search starts at bit zero, this
+ * all works, since we have at least one command structure available;
+ * however, it means that the structures with the low indexes have to be
+ * reserved for driver-initiated requests, while requests from the block
+ * layer will use the higher indexes.
*/
- offset = h->last_allocation; /* benignly racy */
for (;;) {
- i = find_next_zero_bit(h->cmd_pool_bits, h->nr_cmds, offset);
- if (unlikely(i == h->nr_cmds)) {
+ i = find_next_zero_bit(h->cmd_pool_bits,
+ HPSA_NRESERVED_CMDS,
+ offset);
+ if (unlikely(i >= HPSA_NRESERVED_CMDS)) {
offset = 0;
continue;
}
refcount = atomic_inc_return(&c->refcount);
if (unlikely(refcount > 1)) {
cmd_free(h, c); /* already in use */
- offset = (i + 1) % h->nr_cmds;
+ offset = (i + 1) % HPSA_NRESERVED_CMDS;
continue;
}
set_bit(i & (BITS_PER_LONG - 1),
h->cmd_pool_bits + (i / BITS_PER_LONG));
break; /* it's ours now. */
}
- h->last_allocation = i; /* benignly racy */
-
- /* Zero out all of commandlist except the last field, refcount */
- memset(c, 0, offsetof(struct CommandList, refcount));
- c->Header.tag = cpu_to_le64((u64) (i << DIRECT_LOOKUP_SHIFT));
- cmd_dma_handle = h->cmd_pool_dhandle + i * sizeof(*c);
- c->err_info = h->errinfo_pool + i;
- memset(c->err_info, 0, sizeof(*c->err_info));
- err_dma_handle = h->errinfo_pool_dhandle
- + i * sizeof(*c->err_info);
-
- c->cmdindex = i;
-
- c->busaddr = (u32) cmd_dma_handle;
- temp64.val = (u64) err_dma_handle;
- c->ErrDesc.Addr = cpu_to_le64((u64) err_dma_handle);
- c->ErrDesc.Len = cpu_to_le32((u32) sizeof(*c->err_info));
-
- c->h = h;
+ hpsa_cmd_partial_init(h, i, c);
return c;
}
+/*
+ * This is the complementary operation to cmd_alloc(). Note, however, in some
+ * corner cases it may also be used to free blocks allocated by
+ * cmd_tagged_alloc() in which case the ref-count decrement does the trick and
+ * the clear-bit is harmless.
+ */
static void cmd_free(struct ctlr_info *h, struct CommandList *c)
{
if (atomic_dec_and_test(&c->refcount)) {
if (iocommand.buf_size > 0) {
buff = kmalloc(iocommand.buf_size, GFP_KERNEL);
if (buff == NULL)
- return -EFAULT;
+ return -ENOMEM;
if (iocommand.Request.Type.Direction & XFER_WRITE) {
/* Copy the data into the buffer we created */
if (copy_from_user(buff, iocommand.buf,
}
}
c = cmd_alloc(h);
- if (c == NULL) {
- rc = -ENOMEM;
- goto out_kfree;
- }
+
/* Fill in the command type */
c->cmd_type = CMD_IOCTL_PEND;
+ c->scsi_cmd = SCSI_CMD_BUSY;
/* Fill in Command Header */
c->Header.ReplyQueue = 0; /* unused in simple mode */
if (iocommand.buf_size > 0) { /* buffer to fill */
c->SG[0].Len = cpu_to_le32(iocommand.buf_size);
c->SG[0].Ext = cpu_to_le32(HPSA_SG_LAST); /* not chaining */
}
- hpsa_scsi_do_simple_cmd_core_if_no_lockup(h, c);
+ rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT);
if (iocommand.buf_size > 0)
hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_BIDIRECTIONAL);
check_ioctl_unit_attention(h, c);
+ if (rc) {
+ rc = -EIO;
+ goto out;
+ }
/* Copy the error information out */
memcpy(&iocommand.error_info, c->err_info,
sg_used++;
}
c = cmd_alloc(h);
- if (c == NULL) {
- status = -ENOMEM;
- goto cleanup1;
- }
+
c->cmd_type = CMD_IOCTL_PEND;
+ c->scsi_cmd = SCSI_CMD_BUSY;
c->Header.ReplyQueue = 0;
c->Header.SGList = (u8) sg_used;
c->Header.SGTotal = cpu_to_le16(sg_used);
}
c->SG[--i].Ext = cpu_to_le32(HPSA_SG_LAST);
}
- hpsa_scsi_do_simple_cmd_core_if_no_lockup(h, c);
+ status = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT);
if (sg_used)
hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL);
check_ioctl_unit_attention(h, c);
+ if (status) {
+ status = -EIO;
+ goto cleanup0;
+ }
+
/* Copy the error information out */
memcpy(&ioc->error_info, c->err_info, sizeof(ioc->error_info));
if (copy_to_user(argp, ioc, sizeof(*ioc))) {
}
}
-static int hpsa_send_host_reset(struct ctlr_info *h, unsigned char *scsi3addr,
+static void hpsa_send_host_reset(struct ctlr_info *h, unsigned char *scsi3addr,
u8 reset_type)
{
struct CommandList *c;
c = cmd_alloc(h);
- if (!c)
- return -ENOMEM;
+
/* fill_cmd can't fail here, no data buffer to map */
(void) fill_cmd(c, HPSA_DEVICE_RESET_MSG, h, NULL, 0, 0,
RAID_CTLR_LUNID, TYPE_MSG);
* the command either. This is the last command we will send before
* re-initializing everything, so it doesn't matter and won't leak.
*/
- return 0;
+ return;
}
static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
int cmd_type)
{
int pci_dir = XFER_NONE;
- struct CommandList *a; /* for commands to be aborted */
+ u64 tag; /* for commands to be aborted */
c->cmd_type = CMD_IOCTL_PEND;
+ c->scsi_cmd = SCSI_CMD_BUSY;
c->Header.ReplyQueue = 0;
if (buff != NULL && size > 0) {
c->Header.SGList = 1;
c->Request.CDB[8] = (size >> 8) & 0xFF;
c->Request.CDB[9] = size & 0xFF;
break;
+ case BMIC_SENSE_DIAG_OPTIONS:
+ c->Request.CDBLen = 16;
+ c->Request.type_attr_dir =
+ TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ);
+ c->Request.Timeout = 0;
+ /* Spec says this should be BMIC_WRITE */
+ c->Request.CDB[0] = BMIC_READ;
+ c->Request.CDB[6] = BMIC_SENSE_DIAG_OPTIONS;
+ break;
+ case BMIC_SET_DIAG_OPTIONS:
+ c->Request.CDBLen = 16;
+ c->Request.type_attr_dir =
+ TYPE_ATTR_DIR(cmd_type,
+ ATTR_SIMPLE, XFER_WRITE);
+ c->Request.Timeout = 0;
+ c->Request.CDB[0] = BMIC_WRITE;
+ c->Request.CDB[6] = BMIC_SET_DIAG_OPTIONS;
+ break;
case HPSA_CACHE_FLUSH:
c->Request.CDBLen = 12;
c->Request.type_attr_dir =
c->Request.CDB[7] = (size >> 16) & 0xFF;
c->Request.CDB[8] = (size >> 8) & 0XFF;
break;
+ case BMIC_SENSE_SUBSYSTEM_INFORMATION:
+ c->Request.CDBLen = 10;
+ c->Request.type_attr_dir =
+ TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ);
+ c->Request.Timeout = 0;
+ c->Request.CDB[0] = BMIC_READ;
+ c->Request.CDB[6] = BMIC_SENSE_SUBSYSTEM_INFORMATION;
+ c->Request.CDB[7] = (size >> 16) & 0xFF;
+ c->Request.CDB[8] = (size >> 8) & 0XFF;
+ break;
+ case BMIC_IDENTIFY_CONTROLLER:
+ c->Request.CDBLen = 10;
+ c->Request.type_attr_dir =
+ TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ);
+ c->Request.Timeout = 0;
+ c->Request.CDB[0] = BMIC_READ;
+ c->Request.CDB[1] = 0;
+ c->Request.CDB[2] = 0;
+ c->Request.CDB[3] = 0;
+ c->Request.CDB[4] = 0;
+ c->Request.CDB[5] = 0;
+ c->Request.CDB[6] = BMIC_IDENTIFY_CONTROLLER;
+ c->Request.CDB[7] = (size >> 16) & 0xFF;
+ c->Request.CDB[8] = (size >> 8) & 0XFF;
+ c->Request.CDB[9] = 0;
+ break;
default:
dev_warn(&h->pdev->dev, "unknown command 0x%c\n", cmd);
BUG();
} else if (cmd_type == TYPE_MSG) {
switch (cmd) {
+ case HPSA_PHYS_TARGET_RESET:
+ c->Request.CDBLen = 16;
+ c->Request.type_attr_dir =
+ TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_NONE);
+ c->Request.Timeout = 0; /* Don't time out */
+ memset(&c->Request.CDB[0], 0, sizeof(c->Request.CDB));
+ c->Request.CDB[0] = HPSA_RESET;
+ c->Request.CDB[1] = HPSA_TARGET_RESET_TYPE;
+ /* Physical target reset needs no control bytes 4-7*/
+ c->Request.CDB[4] = 0x00;
+ c->Request.CDB[5] = 0x00;
+ c->Request.CDB[6] = 0x00;
+ c->Request.CDB[7] = 0x00;
+ break;
case HPSA_DEVICE_RESET_MSG:
c->Request.CDBLen = 16;
c->Request.type_attr_dir =
c->Request.CDB[7] = 0x00;
break;
case HPSA_ABORT_MSG:
- a = buff; /* point to command to be aborted */
+ memcpy(&tag, buff, sizeof(tag));
dev_dbg(&h->pdev->dev,
- "Abort Tag:0x%016llx request Tag:0x%016llx",
- a->Header.tag, c->Header.tag);
+ "Abort Tag:0x%016llx using rqst Tag:0x%016llx",
+ tag, c->Header.tag);
c->Request.CDBLen = 16;
c->Request.type_attr_dir =
TYPE_ATTR_DIR(cmd_type,
c->Request.CDB[2] = 0x00; /* reserved */
c->Request.CDB[3] = 0x00; /* reserved */
/* Tag to abort goes in CDB[4]-CDB[11] */
- memcpy(&c->Request.CDB[4], &a->Header.tag,
- sizeof(a->Header.tag));
+ memcpy(&c->Request.CDB[4], &tag, sizeof(tag));
c->Request.CDB[12] = 0x00; /* reserved */
c->Request.CDB[13] = 0x00; /* reserved */
c->Request.CDB[14] = 0x00; /* reserved */
if (likely(c->cmd_type == CMD_IOACCEL1 || c->cmd_type == CMD_SCSI
|| c->cmd_type == CMD_IOACCEL2))
complete_scsi_command(c);
- else if (c->cmd_type == CMD_IOCTL_PEND)
+ else if (c->cmd_type == CMD_IOCTL_PEND || c->cmd_type == IOACCEL2_TMF)
complete(c->waiting);
}
-
-static inline u32 hpsa_tag_discard_error_bits(struct ctlr_info *h, u32 tag)
-{
-#define HPSA_PERF_ERROR_BITS ((1 << DIRECT_LOOKUP_SHIFT) - 1)
-#define HPSA_SIMPLE_ERROR_BITS 0x03
- if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
- return tag & ~HPSA_SIMPLE_ERROR_BITS;
- return tag & ~HPSA_PERF_ERROR_BITS;
-}
-
/* process completion of an indexed ("direct lookup") command */
static inline void process_indexed_cmd(struct ctlr_info *h,
u32 raw_tag)
/* This does a hard reset of the controller using PCI power management
* states or the using the doorbell register.
*/
-static int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev)
+static int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev, u32 board_id)
{
u64 cfg_offset;
u32 cfg_base_addr;
int rc;
struct CfgTable __iomem *cfgtable;
u32 use_doorbell;
- u32 board_id;
u16 command_register;
/* For controllers as old as the P600, this is very nearly
* using the doorbell register.
*/
- rc = hpsa_lookup_board_id(pdev, &board_id);
- if (rc < 0) {
- dev_warn(&pdev->dev, "Board ID not found\n");
- return rc;
- }
if (!ctlr_is_resettable(board_id)) {
dev_warn(&pdev->dev, "Controller not resettable\n");
return -ENODEV;
return -1;
}
+static void hpsa_disable_interrupt_mode(struct ctlr_info *h)
+{
+ if (h->msix_vector) {
+ if (h->pdev->msix_enabled)
+ pci_disable_msix(h->pdev);
+ h->msix_vector = 0;
+ } else if (h->msi_vector) {
+ if (h->pdev->msi_enabled)
+ pci_disable_msi(h->pdev);
+ h->msi_vector = 0;
+ }
+}
+
/* If MSI/MSI-X is supported by the kernel we will try to enable it on
* controllers that are capable. If not, we use legacy INTx mode.
*/
-
static void hpsa_interrupt_mode(struct ctlr_info *h)
{
#ifdef CONFIG_PCI_MSI
return 0;
}
+static void hpsa_free_cfgtables(struct ctlr_info *h)
+{
+ if (h->transtable) {
+ iounmap(h->transtable);
+ h->transtable = NULL;
+ }
+ if (h->cfgtable) {
+ iounmap(h->cfgtable);
+ h->cfgtable = NULL;
+ }
+}
+
+/* Find and map CISS config table and transfer table
++ * several items must be unmapped (freed) later
++ * */
static int hpsa_find_cfgtables(struct ctlr_info *h)
{
u64 cfg_offset;
h->transtable = remap_pci_mem(pci_resource_start(h->pdev,
cfg_base_addr_index)+cfg_offset+trans_offset,
sizeof(*h->transtable));
- if (!h->transtable)
+ if (!h->transtable) {
+ dev_err(&h->pdev->dev, "Failed mapping transfer table\n");
+ hpsa_free_cfgtables(h);
return -ENOMEM;
+ }
return 0;
}
static void hpsa_get_max_perf_mode_cmds(struct ctlr_info *h)
{
- h->max_commands = readl(&(h->cfgtable->MaxPerformantModeCommands));
+#define MIN_MAX_COMMANDS 16
+ BUILD_BUG_ON(MIN_MAX_COMMANDS <= HPSA_NRESERVED_CMDS);
+
+ h->max_commands = readl(&h->cfgtable->MaxPerformantModeCommands);
/* Limit commands in memory limited kdump scenario. */
if (reset_devices && h->max_commands > 32)
h->max_commands = 32;
- if (h->max_commands < 16) {
- dev_warn(&h->pdev->dev, "Controller reports "
- "max supported commands of %d, an obvious lie. "
- "Using 16. Ensure that firmware is up to date.\n",
- h->max_commands);
- h->max_commands = 16;
+ if (h->max_commands < MIN_MAX_COMMANDS) {
+ dev_warn(&h->pdev->dev,
+ "Controller reports max supported commands of %d Using %d instead. Ensure that firmware is up to date.\n",
+ h->max_commands,
+ MIN_MAX_COMMANDS);
+ h->max_commands = MIN_MAX_COMMANDS;
}
}
dev_warn(&h->pdev->dev, "Physical aborts not supported\n");
if (!(HPSATMF_LOG_TASK_ABORT & h->TMFSupportFlags))
dev_warn(&h->pdev->dev, "Logical aborts not supported\n");
+ if (!(HPSATMF_IOACCEL_ENABLED & h->TMFSupportFlags))
+ dev_warn(&h->pdev->dev, "HP SSD Smart Path aborts not supported\n");
}
static inline bool hpsa_CISS_signature_present(struct ctlr_info *h)
* as we enter this code.)
*/
for (i = 0; i < MAX_MODE_CHANGE_WAIT; i++) {
+ if (h->remove_in_progress)
+ goto done;
spin_lock_irqsave(&h->lock, flags);
doorbell_value = readl(h->vaddr + SA5_DOORBELL);
spin_unlock_irqrestore(&h->lock, flags);
return -ENODEV;
}
+/* free items allocated or mapped by hpsa_pci_init */
+static void hpsa_free_pci_init(struct ctlr_info *h)
+{
+ hpsa_free_cfgtables(h); /* pci_init 4 */
+ iounmap(h->vaddr); /* pci_init 3 */
+ h->vaddr = NULL;
+ hpsa_disable_interrupt_mode(h); /* pci_init 2 */
+ /*
+ * call pci_disable_device before pci_release_regions per
+ * Documentation/PCI/pci.txt
+ */
+ pci_disable_device(h->pdev); /* pci_init 1 */
+ pci_release_regions(h->pdev); /* pci_init 2 */
+}
+
+/* several items must be freed later */
static int hpsa_pci_init(struct ctlr_info *h)
{
int prod_index, err;
h->product_name = products[prod_index].product_name;
h->access = *(products[prod_index].access);
+ h->needs_abort_tags_swizzled =
+ ctlr_needs_abort_tags_swizzled(h->board_id);
+
pci_disable_link_state(h->pdev, PCIE_LINK_STATE_L0S |
PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
err = pci_enable_device(h->pdev);
if (err) {
- dev_warn(&h->pdev->dev, "unable to enable PCI device\n");
+ dev_err(&h->pdev->dev, "failed to enable PCI device\n");
+ pci_disable_device(h->pdev);
return err;
}
err = pci_request_regions(h->pdev, HPSA);
if (err) {
dev_err(&h->pdev->dev,
- "cannot obtain PCI resources, aborting\n");
+ "failed to obtain PCI resources\n");
+ pci_disable_device(h->pdev);
return err;
}
hpsa_interrupt_mode(h);
err = hpsa_pci_find_memory_BAR(h->pdev, &h->paddr);
if (err)
- goto err_out_free_res;
+ goto clean2; /* intmode+region, pci */
h->vaddr = remap_pci_mem(h->paddr, 0x250);
if (!h->vaddr) {
+ dev_err(&h->pdev->dev, "failed to remap PCI mem\n");
err = -ENOMEM;
- goto err_out_free_res;
+ goto clean2; /* intmode+region, pci */
}
err = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY);
if (err)
- goto err_out_free_res;
+ goto clean3; /* vaddr, intmode+region, pci */
err = hpsa_find_cfgtables(h);
if (err)
- goto err_out_free_res;
+ goto clean3; /* vaddr, intmode+region, pci */
hpsa_find_board_params(h);
if (!hpsa_CISS_signature_present(h)) {
err = -ENODEV;
- goto err_out_free_res;
+ goto clean4; /* cfgtables, vaddr, intmode+region, pci */
}
hpsa_set_driver_support_bits(h);
hpsa_p600_dma_prefetch_quirk(h);
err = hpsa_enter_simple_mode(h);
if (err)
- goto err_out_free_res;
+ goto clean4; /* cfgtables, vaddr, intmode+region, pci */
return 0;
-err_out_free_res:
- if (h->transtable)
- iounmap(h->transtable);
- if (h->cfgtable)
- iounmap(h->cfgtable);
- if (h->vaddr)
- iounmap(h->vaddr);
+clean4: /* cfgtables, vaddr, intmode+region, pci */
+ hpsa_free_cfgtables(h);
+clean3: /* vaddr, intmode+region, pci */
+ iounmap(h->vaddr);
+ h->vaddr = NULL;
+clean2: /* intmode+region, pci */
+ hpsa_disable_interrupt_mode(h);
+ /*
+ * call pci_disable_device before pci_release_regions per
+ * Documentation/PCI/pci.txt
+ */
pci_disable_device(h->pdev);
pci_release_regions(h->pdev);
return err;
}
}
-static int hpsa_init_reset_devices(struct pci_dev *pdev)
+static int hpsa_init_reset_devices(struct pci_dev *pdev, u32 board_id)
{
int rc, i;
void __iomem *vaddr;
iounmap(vaddr);
/* Reset the controller with a PCI power-cycle or via doorbell */
- rc = hpsa_kdump_hard_reset_controller(pdev);
+ rc = hpsa_kdump_hard_reset_controller(pdev, board_id);
/* -ENOTSUPP here means we cannot reset the controller
* but it's already (and still) up and running in
return rc;
}
-static int hpsa_allocate_cmd_pool(struct ctlr_info *h)
+static void hpsa_free_cmd_pool(struct ctlr_info *h)
+{
+ kfree(h->cmd_pool_bits);
+ h->cmd_pool_bits = NULL;
+ if (h->cmd_pool) {
+ pci_free_consistent(h->pdev,
+ h->nr_cmds * sizeof(struct CommandList),
+ h->cmd_pool,
+ h->cmd_pool_dhandle);
+ h->cmd_pool = NULL;
+ h->cmd_pool_dhandle = 0;
+ }
+ if (h->errinfo_pool) {
+ pci_free_consistent(h->pdev,
+ h->nr_cmds * sizeof(struct ErrorInfo),
+ h->errinfo_pool,
+ h->errinfo_pool_dhandle);
+ h->errinfo_pool = NULL;
+ h->errinfo_pool_dhandle = 0;
+ }
+}
+
+static int hpsa_alloc_cmd_pool(struct ctlr_info *h)
{
h->cmd_pool_bits = kzalloc(
DIV_ROUND_UP(h->nr_cmds, BITS_PER_LONG) *
dev_err(&h->pdev->dev, "out of memory in %s", __func__);
goto clean_up;
}
+ hpsa_preinitialize_commands(h);
return 0;
clean_up:
hpsa_free_cmd_pool(h);
return -ENOMEM;
}
-static void hpsa_free_cmd_pool(struct ctlr_info *h)
-{
- kfree(h->cmd_pool_bits);
- if (h->cmd_pool)
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(struct CommandList),
- h->cmd_pool, h->cmd_pool_dhandle);
- if (h->ioaccel2_cmd_pool)
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool),
- h->ioaccel2_cmd_pool, h->ioaccel2_cmd_pool_dhandle);
- if (h->errinfo_pool)
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(struct ErrorInfo),
- h->errinfo_pool,
- h->errinfo_pool_dhandle);
- if (h->ioaccel_cmd_pool)
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(struct io_accel1_cmd),
- h->ioaccel_cmd_pool, h->ioaccel_cmd_pool_dhandle);
-}
-
static void hpsa_irq_affinity_hints(struct ctlr_info *h)
{
int i, cpu;
i = h->intr_mode;
irq_set_affinity_hint(h->intr[i], NULL);
free_irq(h->intr[i], &h->q[i]);
+ h->q[i] = 0;
return;
}
for (i = 0; i < h->msix_vector; i++) {
irq_set_affinity_hint(h->intr[i], NULL);
free_irq(h->intr[i], &h->q[i]);
+ h->q[i] = 0;
}
for (; i < MAX_REPLY_QUEUES; i++)
h->q[i] = 0;
if (h->intr_mode == PERF_MODE_INT && h->msix_vector > 0) {
/* If performant mode and MSI-X, use multiple reply queues */
for (i = 0; i < h->msix_vector; i++) {
+ sprintf(h->intrname[i], "%s-msix%d", h->devname, i);
rc = request_irq(h->intr[i], msixhandler,
- 0, h->devname,
+ 0, h->intrname[i],
&h->q[i]);
if (rc) {
int j;
} else {
/* Use single reply pool */
if (h->msix_vector > 0 || h->msi_vector) {
+ if (h->msix_vector)
+ sprintf(h->intrname[h->intr_mode],
+ "%s-msix", h->devname);
+ else
+ sprintf(h->intrname[h->intr_mode],
+ "%s-msi", h->devname);
rc = request_irq(h->intr[h->intr_mode],
- msixhandler, 0, h->devname,
+ msixhandler, 0,
+ h->intrname[h->intr_mode],
&h->q[h->intr_mode]);
} else {
+ sprintf(h->intrname[h->intr_mode],
+ "%s-intx", h->devname);
rc = request_irq(h->intr[h->intr_mode],
- intxhandler, IRQF_SHARED, h->devname,
+ intxhandler, IRQF_SHARED,
+ h->intrname[h->intr_mode],
&h->q[h->intr_mode]);
}
+ irq_set_affinity_hint(h->intr[h->intr_mode], NULL);
}
if (rc) {
- dev_err(&h->pdev->dev, "unable to get irq %d for %s\n",
+ dev_err(&h->pdev->dev, "failed to get irq %d for %s\n",
h->intr[h->intr_mode], h->devname);
+ hpsa_free_irqs(h);
return -ENODEV;
}
return 0;
static int hpsa_kdump_soft_reset(struct ctlr_info *h)
{
- if (hpsa_send_host_reset(h, RAID_CTLR_LUNID,
- HPSA_RESET_TYPE_CONTROLLER)) {
- dev_warn(&h->pdev->dev, "Resetting array controller failed.\n");
- return -EIO;
- }
+ int rc;
+ hpsa_send_host_reset(h, RAID_CTLR_LUNID, HPSA_RESET_TYPE_CONTROLLER);
dev_info(&h->pdev->dev, "Waiting for board to soft reset.\n");
- if (hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_NOT_READY)) {
+ rc = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_NOT_READY);
+ if (rc) {
dev_warn(&h->pdev->dev, "Soft reset had no effect.\n");
- return -1;
+ return rc;
}
dev_info(&h->pdev->dev, "Board reset, awaiting READY status.\n");
- if (hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY)) {
+ rc = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY);
+ if (rc) {
dev_warn(&h->pdev->dev, "Board failed to become ready "
"after soft reset.\n");
- return -1;
+ return rc;
}
return 0;
}
-static void hpsa_free_irqs_and_disable_msix(struct ctlr_info *h)
-{
- hpsa_free_irqs(h);
-#ifdef CONFIG_PCI_MSI
- if (h->msix_vector) {
- if (h->pdev->msix_enabled)
- pci_disable_msix(h->pdev);
- } else if (h->msi_vector) {
- if (h->pdev->msi_enabled)
- pci_disable_msi(h->pdev);
- }
-#endif /* CONFIG_PCI_MSI */
-}
-
static void hpsa_free_reply_queues(struct ctlr_info *h)
{
int i;
for (i = 0; i < h->nreply_queues; i++) {
if (!h->reply_queue[i].head)
continue;
- pci_free_consistent(h->pdev, h->reply_queue_size,
- h->reply_queue[i].head, h->reply_queue[i].busaddr);
+ pci_free_consistent(h->pdev,
+ h->reply_queue_size,
+ h->reply_queue[i].head,
+ h->reply_queue[i].busaddr);
h->reply_queue[i].head = NULL;
h->reply_queue[i].busaddr = 0;
}
+ h->reply_queue_size = 0;
}
static void hpsa_undo_allocations_after_kdump_soft_reset(struct ctlr_info *h)
{
- hpsa_free_irqs_and_disable_msix(h);
- hpsa_free_sg_chain_blocks(h);
- hpsa_free_cmd_pool(h);
- kfree(h->ioaccel1_blockFetchTable);
- kfree(h->blockFetchTable);
- hpsa_free_reply_queues(h);
- if (h->vaddr)
- iounmap(h->vaddr);
- if (h->transtable)
- iounmap(h->transtable);
- if (h->cfgtable)
- iounmap(h->cfgtable);
- pci_disable_device(h->pdev);
- pci_release_regions(h->pdev);
- kfree(h);
+ hpsa_free_performant_mode(h); /* init_one 7 */
+ hpsa_free_sg_chain_blocks(h); /* init_one 6 */
+ hpsa_free_cmd_pool(h); /* init_one 5 */
+ hpsa_free_irqs(h); /* init_one 4 */
+ scsi_host_put(h->scsi_host); /* init_one 3 */
+ h->scsi_host = NULL; /* init_one 3 */
+ hpsa_free_pci_init(h); /* init_one 2_5 */
+ free_percpu(h->lockup_detected); /* init_one 2 */
+ h->lockup_detected = NULL; /* init_one 2 */
+ if (h->resubmit_wq) {
+ destroy_workqueue(h->resubmit_wq); /* init_one 1 */
+ h->resubmit_wq = NULL;
+ }
+ if (h->rescan_ctlr_wq) {
+ destroy_workqueue(h->rescan_ctlr_wq);
+ h->rescan_ctlr_wq = NULL;
+ }
+ kfree(h); /* init_one 1 */
}
/* Called when controller lockup detected. */
{
int i, refcount;
struct CommandList *c;
+ int failcount = 0;
flush_workqueue(h->resubmit_wq); /* ensure all cmds are fully built */
for (i = 0; i < h->nr_cmds; i++) {
c = h->cmd_pool + i;
refcount = atomic_inc_return(&c->refcount);
if (refcount > 1) {
- c->err_info->CommandStatus = CMD_HARDWARE_ERR;
+ c->err_info->CommandStatus = CMD_CTLR_LOCKUP;
finish_cmd(c);
+ atomic_dec(&h->commands_outstanding);
+ failcount++;
}
cmd_free(h, c);
}
+ dev_warn(&h->pdev->dev,
+ "failed %d commands in fail_all\n", failcount);
}
static void set_lockup_detected_for_all_cpus(struct ctlr_info *h, u32 value)
if (!lockup_detected) {
/* no heartbeat, but controller gave us a zero. */
dev_warn(&h->pdev->dev,
- "lockup detected but scratchpad register is zero\n");
+ "lockup detected after %d but scratchpad register is zero\n",
+ h->heartbeat_sample_interval / HZ);
lockup_detected = 0xffffffff;
}
set_lockup_detected_for_all_cpus(h, lockup_detected);
spin_unlock_irqrestore(&h->lock, flags);
- dev_warn(&h->pdev->dev, "Controller lockup detected: 0x%08x\n",
- lockup_detected);
+ dev_warn(&h->pdev->dev, "Controller lockup detected: 0x%08x after %d\n",
+ lockup_detected, h->heartbeat_sample_interval / HZ);
pci_disable_device(h->pdev);
fail_all_outstanding_cmds(h);
}
-static void detect_controller_lockup(struct ctlr_info *h)
+static int detect_controller_lockup(struct ctlr_info *h)
{
u64 now;
u32 heartbeat;
/* If we've received an interrupt recently, we're ok. */
if (time_after64(h->last_intr_timestamp +
(h->heartbeat_sample_interval), now))
- return;
+ return false;
/*
* If we've already checked the heartbeat recently, we're ok.
*/
if (time_after64(h->last_heartbeat_timestamp +
(h->heartbeat_sample_interval), now))
- return;
+ return false;
/* If heartbeat has not changed since we last looked, we're not ok. */
spin_lock_irqsave(&h->lock, flags);
spin_unlock_irqrestore(&h->lock, flags);
if (h->last_heartbeat == heartbeat) {
controller_lockup_detected(h);
- return;
+ return true;
}
/* We're ok. */
h->last_heartbeat = heartbeat;
h->last_heartbeat_timestamp = now;
+ return false;
}
static void hpsa_ack_ctlr_events(struct ctlr_info *h)
*/
static int hpsa_ctlr_needs_rescan(struct ctlr_info *h)
{
+ if (h->drv_req_rescan) {
+ h->drv_req_rescan = 0;
+ return 1;
+ }
+
if (!(h->fw_support & MISC_FW_EVENT_NOTIFY))
return 0;
return 0;
}
+static int hpsa_luns_changed(struct ctlr_info *h)
+{
+ int rc = 1; /* assume there are changes */
+ struct ReportLUNdata *logdev = NULL;
+
+ /* if we can't find out if lun data has changed,
+ * assume that it has.
+ */
+
+ if (!h->lastlogicals)
+ goto out;
+
+ logdev = kzalloc(sizeof(*logdev), GFP_KERNEL);
+ if (!logdev) {
+ dev_warn(&h->pdev->dev,
+ "Out of memory, can't track lun changes.\n");
+ goto out;
+ }
+ if (hpsa_scsi_do_report_luns(h, 1, logdev, sizeof(*logdev), 0)) {
+ dev_warn(&h->pdev->dev,
+ "report luns failed, can't track lun changes.\n");
+ goto out;
+ }
+ if (memcmp(logdev, h->lastlogicals, sizeof(*logdev))) {
+ dev_info(&h->pdev->dev,
+ "Lun changes detected.\n");
+ memcpy(h->lastlogicals, logdev, sizeof(*logdev));
+ goto out;
+ } else
+ rc = 0; /* no changes detected. */
+out:
+ kfree(logdev);
+ return rc;
+}
+
static void hpsa_rescan_ctlr_worker(struct work_struct *work)
{
unsigned long flags;
hpsa_ack_ctlr_events(h);
hpsa_scan_start(h->scsi_host);
scsi_host_put(h->scsi_host);
+ } else if (h->discovery_polling) {
+ hpsa_disable_rld_caching(h);
+ if (hpsa_luns_changed(h)) {
+ struct Scsi_Host *sh = NULL;
+
+ dev_info(&h->pdev->dev,
+ "driver discovery polling rescan.\n");
+ sh = scsi_host_get(h->scsi_host);
+ if (sh != NULL) {
+ hpsa_scan_start(sh);
+ scsi_host_put(sh);
+ }
+ }
}
spin_lock_irqsave(&h->lock, flags);
if (!h->remove_in_progress)
struct ctlr_info *h;
int try_soft_reset = 0;
unsigned long flags;
+ u32 board_id;
if (number_of_controllers == 0)
printk(KERN_INFO DRIVER_NAME "\n");
- rc = hpsa_init_reset_devices(pdev);
+ rc = hpsa_lookup_board_id(pdev, &board_id);
+ if (rc < 0) {
+ dev_warn(&pdev->dev, "Board ID not found\n");
+ return rc;
+ }
+
+ rc = hpsa_init_reset_devices(pdev, board_id);
if (rc) {
if (rc != -ENOTSUPP)
return rc;
*/
BUILD_BUG_ON(sizeof(struct CommandList) % COMMANDLIST_ALIGNMENT);
h = kzalloc(sizeof(*h), GFP_KERNEL);
- if (!h)
+ if (!h) {
+ dev_err(&pdev->dev, "Failed to allocate controller head\n");
return -ENOMEM;
+ }
h->pdev = pdev;
+
h->intr_mode = hpsa_simple_mode ? SIMPLE_MODE_INT : PERF_MODE_INT;
INIT_LIST_HEAD(&h->offline_device_list);
spin_lock_init(&h->lock);
spin_lock_init(&h->offline_device_lock);
spin_lock_init(&h->scan_lock);
atomic_set(&h->passthru_cmds_avail, HPSA_MAX_CONCURRENT_PASSTHRUS);
-
- h->rescan_ctlr_wq = hpsa_create_controller_wq(h, "rescan");
- if (!h->rescan_ctlr_wq) {
- rc = -ENOMEM;
- goto clean1;
- }
-
- h->resubmit_wq = hpsa_create_controller_wq(h, "resubmit");
- if (!h->resubmit_wq) {
- rc = -ENOMEM;
- goto clean1;
- }
+ atomic_set(&h->abort_cmds_available, HPSA_CMDS_RESERVED_FOR_ABORTS);
/* Allocate and clear per-cpu variable lockup_detected */
h->lockup_detected = alloc_percpu(u32);
if (!h->lockup_detected) {
+ dev_err(&h->pdev->dev, "Failed to allocate lockup detector\n");
rc = -ENOMEM;
- goto clean1;
+ goto clean1; /* aer/h */
}
set_lockup_detected_for_all_cpus(h, 0);
rc = hpsa_pci_init(h);
- if (rc != 0)
- goto clean1;
+ if (rc)
+ goto clean2; /* lu, aer/h */
+
+ /* relies on h-> settings made by hpsa_pci_init, including
+ * interrupt_mode h->intr */
+ rc = hpsa_scsi_host_alloc(h);
+ if (rc)
+ goto clean2_5; /* pci, lu, aer/h */
- sprintf(h->devname, HPSA "%d", number_of_controllers);
+ sprintf(h->devname, HPSA "%d", h->scsi_host->host_no);
h->ctlr = number_of_controllers;
number_of_controllers++;
dac = 0;
} else {
dev_err(&pdev->dev, "no suitable DMA available\n");
- goto clean1;
+ goto clean3; /* shost, pci, lu, aer/h */
}
}
/* make sure the board interrupts are off */
h->access.set_intr_mask(h, HPSA_INTR_OFF);
- if (hpsa_request_irqs(h, do_hpsa_intr_msi, do_hpsa_intr_intx))
- goto clean2;
- dev_info(&pdev->dev, "%s: <0x%x> at IRQ %d%s using DAC\n",
- h->devname, pdev->device,
- h->intr[h->intr_mode], dac ? "" : " not");
- rc = hpsa_allocate_cmd_pool(h);
+ rc = hpsa_request_irqs(h, do_hpsa_intr_msi, do_hpsa_intr_intx);
if (rc)
- goto clean2_and_free_irqs;
- if (hpsa_allocate_sg_chain_blocks(h))
- goto clean4;
+ goto clean3; /* shost, pci, lu, aer/h */
+ rc = hpsa_alloc_cmd_pool(h);
+ if (rc)
+ goto clean4; /* irq, shost, pci, lu, aer/h */
+ rc = hpsa_alloc_sg_chain_blocks(h);
+ if (rc)
+ goto clean5; /* cmd, irq, shost, pci, lu, aer/h */
init_waitqueue_head(&h->scan_wait_queue);
+ init_waitqueue_head(&h->abort_cmd_wait_queue);
+ init_waitqueue_head(&h->event_sync_wait_queue);
+ mutex_init(&h->reset_mutex);
h->scan_finished = 1; /* no scan currently in progress */
pci_set_drvdata(pdev, h);
h->ndevices = 0;
- h->hba_mode_enabled = 0;
- h->scsi_host = NULL;
+
spin_lock_init(&h->devlock);
- hpsa_put_ctlr_into_performant_mode(h);
+ rc = hpsa_put_ctlr_into_performant_mode(h);
+ if (rc)
+ goto clean6; /* sg, cmd, irq, shost, pci, lu, aer/h */
+
+ /* hook into SCSI subsystem */
+ rc = hpsa_scsi_add_host(h);
+ if (rc)
+ goto clean7; /* perf, sg, cmd, irq, shost, pci, lu, aer/h */
- /* At this point, the controller is ready to take commands.
+ /* create the resubmit workqueue */
+ h->rescan_ctlr_wq = hpsa_create_controller_wq(h, "rescan");
+ if (!h->rescan_ctlr_wq) {
+ rc = -ENOMEM;
+ goto clean7;
+ }
+
+ h->resubmit_wq = hpsa_create_controller_wq(h, "resubmit");
+ if (!h->resubmit_wq) {
+ rc = -ENOMEM;
+ goto clean7; /* aer/h */
+ }
+
+ /*
+ * At this point, the controller is ready to take commands.
* Now, if reset_devices and the hard reset didn't work, try
* the soft reset and see if that works.
*/
if (rc) {
dev_warn(&h->pdev->dev,
"Failed to request_irq after soft reset.\n");
- goto clean4;
+ /*
+ * cannot goto clean7 or free_irqs will be called
+ * again. Instead, do its work
+ */
+ hpsa_free_performant_mode(h); /* clean7 */
+ hpsa_free_sg_chain_blocks(h); /* clean6 */
+ hpsa_free_cmd_pool(h); /* clean5 */
+ /*
+ * skip hpsa_free_irqs(h) clean4 since that
+ * was just called before request_irqs failed
+ */
+ goto clean3;
}
rc = hpsa_kdump_soft_reset(h);
if (rc)
/* Neither hard nor soft reset worked, we're hosed. */
- goto clean4;
+ goto clean7;
dev_info(&h->pdev->dev, "Board READY.\n");
dev_info(&h->pdev->dev,
hpsa_undo_allocations_after_kdump_soft_reset(h);
try_soft_reset = 0;
if (rc)
- /* don't go to clean4, we already unallocated */
+ /* don't goto clean, we already unallocated */
return -ENODEV;
goto reinit_after_soft_reset;
}
- /* Enable Accelerated IO path at driver layer */
- h->acciopath_status = 1;
+ /* Enable Accelerated IO path at driver layer */
+ h->acciopath_status = 1;
+ /* Disable discovery polling.*/
+ h->discovery_polling = 0;
/* Turn the interrupts on so we can service requests */
h->access.set_intr_mask(h, HPSA_INTR_ON);
hpsa_hba_inquiry(h);
- hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */
+
+ h->lastlogicals = kzalloc(sizeof(*(h->lastlogicals)), GFP_KERNEL);
+ if (!h->lastlogicals)
+ dev_info(&h->pdev->dev,
+ "Can't track change to report lun data\n");
/* Monitor the controller for firmware lockups */
h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL;
h->heartbeat_sample_interval);
return 0;
-clean4:
+clean7: /* perf, sg, cmd, irq, shost, pci, lu, aer/h */
+ hpsa_free_performant_mode(h);
+ h->access.set_intr_mask(h, HPSA_INTR_OFF);
+clean6: /* sg, cmd, irq, pci, lockup, wq/aer/h */
hpsa_free_sg_chain_blocks(h);
+clean5: /* cmd, irq, shost, pci, lu, aer/h */
hpsa_free_cmd_pool(h);
-clean2_and_free_irqs:
+clean4: /* irq, shost, pci, lu, aer/h */
hpsa_free_irqs(h);
-clean2:
-clean1:
- if (h->resubmit_wq)
+clean3: /* shost, pci, lu, aer/h */
+ scsi_host_put(h->scsi_host);
+ h->scsi_host = NULL;
+clean2_5: /* pci, lu, aer/h */
+ hpsa_free_pci_init(h);
+clean2: /* lu, aer/h */
+ if (h->lockup_detected) {
+ free_percpu(h->lockup_detected);
+ h->lockup_detected = NULL;
+ }
+clean1: /* wq/aer/h */
+ if (h->resubmit_wq) {
destroy_workqueue(h->resubmit_wq);
- if (h->rescan_ctlr_wq)
+ h->resubmit_wq = NULL;
+ }
+ if (h->rescan_ctlr_wq) {
destroy_workqueue(h->rescan_ctlr_wq);
- if (h->lockup_detected)
- free_percpu(h->lockup_detected);
+ h->rescan_ctlr_wq = NULL;
+ }
kfree(h);
return rc;
}
{
char *flush_buf;
struct CommandList *c;
+ int rc;
- /* Don't bother trying to flush the cache if locked up */
if (unlikely(lockup_detected(h)))
return;
flush_buf = kzalloc(4, GFP_KERNEL);
return;
c = cmd_alloc(h);
- if (!c) {
- dev_warn(&h->pdev->dev, "cmd_alloc returned NULL!\n");
- goto out_of_memory;
- }
+
if (fill_cmd(c, HPSA_CACHE_FLUSH, h, flush_buf, 4, 0,
RAID_CTLR_LUNID, TYPE_CMD)) {
goto out;
}
- hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_TODEVICE);
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_TODEVICE, NO_TIMEOUT);
+ if (rc)
+ goto out;
if (c->err_info->CommandStatus != 0)
out:
dev_warn(&h->pdev->dev,
"error flushing cache on controller\n");
cmd_free(h, c);
-out_of_memory:
kfree(flush_buf);
}
+/* Make controller gather fresh report lun data each time we
+ * send down a report luns request
+ */
+static void hpsa_disable_rld_caching(struct ctlr_info *h)
+{
+ u32 *options;
+ struct CommandList *c;
+ int rc;
+
+ /* Don't bother trying to set diag options if locked up */
+ if (unlikely(h->lockup_detected))
+ return;
+
+ options = kzalloc(sizeof(*options), GFP_KERNEL);
+ if (!options) {
+ dev_err(&h->pdev->dev,
+ "Error: failed to disable rld caching, during alloc.\n");
+ return;
+ }
+
+ c = cmd_alloc(h);
+
+ /* first, get the current diag options settings */
+ if (fill_cmd(c, BMIC_SENSE_DIAG_OPTIONS, h, options, 4, 0,
+ RAID_CTLR_LUNID, TYPE_CMD))
+ goto errout;
+
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ if ((rc != 0) || (c->err_info->CommandStatus != 0))
+ goto errout;
+
+ /* Now, set the bit for disabling the RLD caching */
+ *options |= HPSA_DIAG_OPTS_DISABLE_RLD_CACHING;
+
+ if (fill_cmd(c, BMIC_SET_DIAG_OPTIONS, h, options, 4, 0,
+ RAID_CTLR_LUNID, TYPE_CMD))
+ goto errout;
+
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_TODEVICE, NO_TIMEOUT);
+ if ((rc != 0) || (c->err_info->CommandStatus != 0))
+ goto errout;
+
+ /* Now verify that it got set: */
+ if (fill_cmd(c, BMIC_SENSE_DIAG_OPTIONS, h, options, 4, 0,
+ RAID_CTLR_LUNID, TYPE_CMD))
+ goto errout;
+
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ if ((rc != 0) || (c->err_info->CommandStatus != 0))
+ goto errout;
+
+ if (*options & HPSA_DIAG_OPTS_DISABLE_RLD_CACHING)
+ goto out;
+
+errout:
+ dev_err(&h->pdev->dev,
+ "Error: failed to disable report lun data caching.\n");
+out:
+ cmd_free(h, c);
+ kfree(options);
+}
+
static void hpsa_shutdown(struct pci_dev *pdev)
{
struct ctlr_info *h;
*/
hpsa_flush_cache(h);
h->access.set_intr_mask(h, HPSA_INTR_OFF);
- hpsa_free_irqs_and_disable_msix(h);
+ hpsa_free_irqs(h); /* init_one 4 */
+ hpsa_disable_interrupt_mode(h); /* pci_init 2 */
}
static void hpsa_free_device_info(struct ctlr_info *h)
{
int i;
- for (i = 0; i < h->ndevices; i++)
+ for (i = 0; i < h->ndevices; i++) {
kfree(h->dev[i]);
+ h->dev[i] = NULL;
+ }
}
static void hpsa_remove_one(struct pci_dev *pdev)
cancel_delayed_work_sync(&h->rescan_ctlr_work);
destroy_workqueue(h->rescan_ctlr_wq);
destroy_workqueue(h->resubmit_wq);
- hpsa_unregister_scsi(h); /* unhook from SCSI subsystem */
+
+ /*
+ * Call before disabling interrupts.
+ * scsi_remove_host can trigger I/O operations especially
+ * when multipath is enabled. There can be SYNCHRONIZE CACHE
+ * operations which cannot complete and will hang the system.
+ */
+ if (h->scsi_host)
+ scsi_remove_host(h->scsi_host); /* init_one 8 */
+ /* includes hpsa_free_irqs - init_one 4 */
+ /* includes hpsa_disable_interrupt_mode - pci_init 2 */
hpsa_shutdown(pdev);
- iounmap(h->vaddr);
- iounmap(h->transtable);
- iounmap(h->cfgtable);
- hpsa_free_device_info(h);
- hpsa_free_sg_chain_blocks(h);
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(struct CommandList),
- h->cmd_pool, h->cmd_pool_dhandle);
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(struct ErrorInfo),
- h->errinfo_pool, h->errinfo_pool_dhandle);
- hpsa_free_reply_queues(h);
- kfree(h->cmd_pool_bits);
- kfree(h->blockFetchTable);
- kfree(h->ioaccel1_blockFetchTable);
- kfree(h->ioaccel2_blockFetchTable);
- kfree(h->hba_inquiry_data);
- pci_disable_device(pdev);
- pci_release_regions(pdev);
- free_percpu(h->lockup_detected);
- kfree(h);
+
+ hpsa_free_device_info(h); /* scan */
+
+ kfree(h->hba_inquiry_data); /* init_one 10 */
+ h->hba_inquiry_data = NULL; /* init_one 10 */
+ hpsa_free_ioaccel2_sg_chain_blocks(h);
+ hpsa_free_performant_mode(h); /* init_one 7 */
+ hpsa_free_sg_chain_blocks(h); /* init_one 6 */
+ hpsa_free_cmd_pool(h); /* init_one 5 */
+ kfree(h->lastlogicals);
+
+ /* hpsa_free_irqs already called via hpsa_shutdown init_one 4 */
+
+ scsi_host_put(h->scsi_host); /* init_one 3 */
+ h->scsi_host = NULL; /* init_one 3 */
+
+ /* includes hpsa_disable_interrupt_mode - pci_init 2 */
+ hpsa_free_pci_init(h); /* init_one 2.5 */
+
+ free_percpu(h->lockup_detected); /* init_one 2 */
+ h->lockup_detected = NULL; /* init_one 2 */
+ /* (void) pci_disable_pcie_error_reporting(pdev); */ /* init_one 1 */
+
+ hpsa_delete_sas_host(h);
+
+ kfree(h); /* init_one 1 */
}
static int hpsa_suspend(__attribute__((unused)) struct pci_dev *pdev,
}
}
-/* return -ENODEV or other reason on error, 0 on success */
+/*
+ * return -ENODEV on err, 0 on success (or no action)
+ * allocates numerous items that must be freed later
+ */
static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
{
int i;
return 0;
}
-static int hpsa_alloc_ioaccel_cmd_and_bft(struct ctlr_info *h)
+/* Free ioaccel1 mode command blocks and block fetch table */
+static void hpsa_free_ioaccel1_cmd_and_bft(struct ctlr_info *h)
+{
+ if (h->ioaccel_cmd_pool) {
+ pci_free_consistent(h->pdev,
+ h->nr_cmds * sizeof(*h->ioaccel_cmd_pool),
+ h->ioaccel_cmd_pool,
+ h->ioaccel_cmd_pool_dhandle);
+ h->ioaccel_cmd_pool = NULL;
+ h->ioaccel_cmd_pool_dhandle = 0;
+ }
+ kfree(h->ioaccel1_blockFetchTable);
+ h->ioaccel1_blockFetchTable = NULL;
+}
+
+/* Allocate ioaccel1 mode command blocks and block fetch table */
+static int hpsa_alloc_ioaccel1_cmd_and_bft(struct ctlr_info *h)
{
h->ioaccel_maxsg =
readl(&(h->cfgtable->io_accel_max_embedded_sg_count));
return 0;
clean_up:
- if (h->ioaccel_cmd_pool)
+ hpsa_free_ioaccel1_cmd_and_bft(h);
+ return -ENOMEM;
+}
+
+/* Free ioaccel2 mode command blocks and block fetch table */
+static void hpsa_free_ioaccel2_cmd_and_bft(struct ctlr_info *h)
+{
+ hpsa_free_ioaccel2_sg_chain_blocks(h);
+
+ if (h->ioaccel2_cmd_pool) {
pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(*h->ioaccel_cmd_pool),
- h->ioaccel_cmd_pool, h->ioaccel_cmd_pool_dhandle);
- kfree(h->ioaccel1_blockFetchTable);
- return 1;
+ h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool),
+ h->ioaccel2_cmd_pool,
+ h->ioaccel2_cmd_pool_dhandle);
+ h->ioaccel2_cmd_pool = NULL;
+ h->ioaccel2_cmd_pool_dhandle = 0;
+ }
+ kfree(h->ioaccel2_blockFetchTable);
+ h->ioaccel2_blockFetchTable = NULL;
}
-static int ioaccel2_alloc_cmds_and_bft(struct ctlr_info *h)
+/* Allocate ioaccel2 mode command blocks and block fetch table */
+static int hpsa_alloc_ioaccel2_cmd_and_bft(struct ctlr_info *h)
{
+ int rc;
+
/* Allocate ioaccel2 mode command blocks and block fetch table */
h->ioaccel_maxsg =
sizeof(u32)), GFP_KERNEL);
if ((h->ioaccel2_cmd_pool == NULL) ||
- (h->ioaccel2_blockFetchTable == NULL))
+ (h->ioaccel2_blockFetchTable == NULL)) {
+ rc = -ENOMEM;
+ goto clean_up;
+ }
+
+ rc = hpsa_allocate_ioaccel2_sg_chain_blocks(h);
+ if (rc)
goto clean_up;
memset(h->ioaccel2_cmd_pool, 0,
return 0;
clean_up:
- if (h->ioaccel2_cmd_pool)
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool),
- h->ioaccel2_cmd_pool, h->ioaccel2_cmd_pool_dhandle);
- kfree(h->ioaccel2_blockFetchTable);
- return 1;
+ hpsa_free_ioaccel2_cmd_and_bft(h);
+ return rc;
+}
+
+/* Free items allocated by hpsa_put_ctlr_into_performant_mode */
+static void hpsa_free_performant_mode(struct ctlr_info *h)
+{
+ kfree(h->blockFetchTable);
+ h->blockFetchTable = NULL;
+ hpsa_free_reply_queues(h);
+ hpsa_free_ioaccel1_cmd_and_bft(h);
+ hpsa_free_ioaccel2_cmd_and_bft(h);
}
-static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h)
+/* return -ENODEV on error, 0 on success (or no action)
+ * allocates numerous items that must be freed later
+ */
+static int hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h)
{
u32 trans_support;
unsigned long transMethod = CFGTBL_Trans_Performant |
CFGTBL_Trans_use_short_tags;
- int i;
+ int i, rc;
if (hpsa_simple_mode)
- return;
+ return 0;
trans_support = readl(&(h->cfgtable->TransportSupport));
if (!(trans_support & PERFORMANT_MODE))
- return;
+ return 0;
/* Check for I/O accelerator mode support */
if (trans_support & CFGTBL_Trans_io_accel1) {
transMethod |= CFGTBL_Trans_io_accel1 |
CFGTBL_Trans_enable_directed_msix;
- if (hpsa_alloc_ioaccel_cmd_and_bft(h))
- goto clean_up;
- } else {
- if (trans_support & CFGTBL_Trans_io_accel2) {
- transMethod |= CFGTBL_Trans_io_accel2 |
+ rc = hpsa_alloc_ioaccel1_cmd_and_bft(h);
+ if (rc)
+ return rc;
+ } else if (trans_support & CFGTBL_Trans_io_accel2) {
+ transMethod |= CFGTBL_Trans_io_accel2 |
CFGTBL_Trans_enable_directed_msix;
- if (ioaccel2_alloc_cmds_and_bft(h))
- goto clean_up;
- }
+ rc = hpsa_alloc_ioaccel2_cmd_and_bft(h);
+ if (rc)
+ return rc;
}
h->nreply_queues = h->msix_vector > 0 ? h->msix_vector : 1;
h->reply_queue[i].head = pci_alloc_consistent(h->pdev,
h->reply_queue_size,
&(h->reply_queue[i].busaddr));
- if (!h->reply_queue[i].head)
- goto clean_up;
+ if (!h->reply_queue[i].head) {
+ rc = -ENOMEM;
+ goto clean1; /* rq, ioaccel */
+ }
h->reply_queue[i].size = h->max_commands;
h->reply_queue[i].wraparound = 1; /* spec: init to 1 */
h->reply_queue[i].current_entry = 0;
/* Need a block fetch table for performant mode */
h->blockFetchTable = kmalloc(((SG_ENTRIES_IN_CMD + 1) *
sizeof(u32)), GFP_KERNEL);
- if (!h->blockFetchTable)
- goto clean_up;
+ if (!h->blockFetchTable) {
+ rc = -ENOMEM;
+ goto clean1; /* rq, ioaccel */
+ }
- hpsa_enter_performant_mode(h, trans_support);
- return;
+ rc = hpsa_enter_performant_mode(h, trans_support);
+ if (rc)
+ goto clean2; /* bft, rq, ioaccel */
+ return 0;
-clean_up:
- hpsa_free_reply_queues(h);
+clean2: /* bft, rq, ioaccel */
kfree(h->blockFetchTable);
+ h->blockFetchTable = NULL;
+clean1: /* rq, ioaccel */
+ hpsa_free_reply_queues(h);
+ hpsa_free_ioaccel1_cmd_and_bft(h);
+ hpsa_free_ioaccel2_cmd_and_bft(h);
+ return rc;
}
static int is_accelerated_cmd(struct CommandList *c)
} while (1);
}
+static struct hpsa_sas_phy *hpsa_alloc_sas_phy(
+ struct hpsa_sas_port *hpsa_sas_port)
+{
+ struct hpsa_sas_phy *hpsa_sas_phy;
+ struct sas_phy *phy;
+
+ hpsa_sas_phy = kzalloc(sizeof(*hpsa_sas_phy), GFP_KERNEL);
+ if (!hpsa_sas_phy)
+ return NULL;
+
+ phy = sas_phy_alloc(hpsa_sas_port->parent_node->parent_dev,
+ hpsa_sas_port->next_phy_index);
+ if (!phy) {
+ kfree(hpsa_sas_phy);
+ return NULL;
+ }
+
+ hpsa_sas_port->next_phy_index++;
+ hpsa_sas_phy->phy = phy;
+ hpsa_sas_phy->parent_port = hpsa_sas_port;
+
+ return hpsa_sas_phy;
+}
+
+static void hpsa_free_sas_phy(struct hpsa_sas_phy *hpsa_sas_phy)
+{
+ struct sas_phy *phy = hpsa_sas_phy->phy;
+
+ sas_port_delete_phy(hpsa_sas_phy->parent_port->port, phy);
+ sas_phy_free(phy);
+ if (hpsa_sas_phy->added_to_port)
+ list_del(&hpsa_sas_phy->phy_list_entry);
+ kfree(hpsa_sas_phy);
+}
+
+static int hpsa_sas_port_add_phy(struct hpsa_sas_phy *hpsa_sas_phy)
+{
+ int rc;
+ struct hpsa_sas_port *hpsa_sas_port;
+ struct sas_phy *phy;
+ struct sas_identify *identify;
+
+ hpsa_sas_port = hpsa_sas_phy->parent_port;
+ phy = hpsa_sas_phy->phy;
+
+ identify = &phy->identify;
+ memset(identify, 0, sizeof(*identify));
+ identify->sas_address = hpsa_sas_port->sas_address;
+ identify->device_type = SAS_END_DEVICE;
+ identify->initiator_port_protocols = SAS_PROTOCOL_STP;
+ identify->target_port_protocols = SAS_PROTOCOL_STP;
+ phy->minimum_linkrate_hw = SAS_LINK_RATE_UNKNOWN;
+ phy->maximum_linkrate_hw = SAS_LINK_RATE_UNKNOWN;
+ phy->minimum_linkrate = SAS_LINK_RATE_UNKNOWN;
+ phy->maximum_linkrate = SAS_LINK_RATE_UNKNOWN;
+ phy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN;
+
+ rc = sas_phy_add(hpsa_sas_phy->phy);
+ if (rc)
+ return rc;
+
+ sas_port_add_phy(hpsa_sas_port->port, hpsa_sas_phy->phy);
+ list_add_tail(&hpsa_sas_phy->phy_list_entry,
+ &hpsa_sas_port->phy_list_head);
+ hpsa_sas_phy->added_to_port = true;
+
+ return 0;
+}
+
+static int
+ hpsa_sas_port_add_rphy(struct hpsa_sas_port *hpsa_sas_port,
+ struct sas_rphy *rphy)
+{
+ struct sas_identify *identify;
+
+ identify = &rphy->identify;
+ identify->sas_address = hpsa_sas_port->sas_address;
+ identify->initiator_port_protocols = SAS_PROTOCOL_STP;
+ identify->target_port_protocols = SAS_PROTOCOL_STP;
+
+ return sas_rphy_add(rphy);
+}
+
+static struct hpsa_sas_port
+ *hpsa_alloc_sas_port(struct hpsa_sas_node *hpsa_sas_node,
+ u64 sas_address)
+{
+ int rc;
+ struct hpsa_sas_port *hpsa_sas_port;
+ struct sas_port *port;
+
+ hpsa_sas_port = kzalloc(sizeof(*hpsa_sas_port), GFP_KERNEL);
+ if (!hpsa_sas_port)
+ return NULL;
+
+ INIT_LIST_HEAD(&hpsa_sas_port->phy_list_head);
+ hpsa_sas_port->parent_node = hpsa_sas_node;
+
+ port = sas_port_alloc_num(hpsa_sas_node->parent_dev);
+ if (!port)
+ goto free_hpsa_port;
+
+ rc = sas_port_add(port);
+ if (rc)
+ goto free_sas_port;
+
+ hpsa_sas_port->port = port;
+ hpsa_sas_port->sas_address = sas_address;
+ list_add_tail(&hpsa_sas_port->port_list_entry,
+ &hpsa_sas_node->port_list_head);
+
+ return hpsa_sas_port;
+
+free_sas_port:
+ sas_port_free(port);
+free_hpsa_port:
+ kfree(hpsa_sas_port);
+
+ return NULL;
+}
+
+static void hpsa_free_sas_port(struct hpsa_sas_port *hpsa_sas_port)
+{
+ struct hpsa_sas_phy *hpsa_sas_phy;
+ struct hpsa_sas_phy *next;
+
+ list_for_each_entry_safe(hpsa_sas_phy, next,
+ &hpsa_sas_port->phy_list_head, phy_list_entry)
+ hpsa_free_sas_phy(hpsa_sas_phy);
+
+ sas_port_delete(hpsa_sas_port->port);
+ list_del(&hpsa_sas_port->port_list_entry);
+ kfree(hpsa_sas_port);
+}
+
+static struct hpsa_sas_node *hpsa_alloc_sas_node(struct device *parent_dev)
+{
+ struct hpsa_sas_node *hpsa_sas_node;
+
+ hpsa_sas_node = kzalloc(sizeof(*hpsa_sas_node), GFP_KERNEL);
+ if (hpsa_sas_node) {
+ hpsa_sas_node->parent_dev = parent_dev;
+ INIT_LIST_HEAD(&hpsa_sas_node->port_list_head);
+ }
+
+ return hpsa_sas_node;
+}
+
+static void hpsa_free_sas_node(struct hpsa_sas_node *hpsa_sas_node)
+{
+ struct hpsa_sas_port *hpsa_sas_port;
+ struct hpsa_sas_port *next;
+
+ if (!hpsa_sas_node)
+ return;
+
+ list_for_each_entry_safe(hpsa_sas_port, next,
+ &hpsa_sas_node->port_list_head, port_list_entry)
+ hpsa_free_sas_port(hpsa_sas_port);
+
+ kfree(hpsa_sas_node);
+}
+
+static struct hpsa_scsi_dev_t
+ *hpsa_find_device_by_sas_rphy(struct ctlr_info *h,
+ struct sas_rphy *rphy)
+{
+ int i;
+ struct hpsa_scsi_dev_t *device;
+
+ for (i = 0; i < h->ndevices; i++) {
+ device = h->dev[i];
+ if (!device->sas_port)
+ continue;
+ if (device->sas_port->rphy == rphy)
+ return device;
+ }
+
+ return NULL;
+}
+
+static int hpsa_add_sas_host(struct ctlr_info *h)
+{
+ int rc;
+ struct device *parent_dev;
+ struct hpsa_sas_node *hpsa_sas_node;
+ struct hpsa_sas_port *hpsa_sas_port;
+ struct hpsa_sas_phy *hpsa_sas_phy;
+
+ parent_dev = &h->scsi_host->shost_gendev;
+
+ hpsa_sas_node = hpsa_alloc_sas_node(parent_dev);
+ if (!hpsa_sas_node)
+ return -ENOMEM;
+
+ hpsa_sas_port = hpsa_alloc_sas_port(hpsa_sas_node, h->sas_address);
+ if (!hpsa_sas_port) {
+ rc = -ENODEV;
+ goto free_sas_node;
+ }
+
+ hpsa_sas_phy = hpsa_alloc_sas_phy(hpsa_sas_port);
+ if (!hpsa_sas_phy) {
+ rc = -ENODEV;
+ goto free_sas_port;
+ }
+
+ rc = hpsa_sas_port_add_phy(hpsa_sas_phy);
+ if (rc)
+ goto free_sas_phy;
+
+ h->sas_host = hpsa_sas_node;
+
+ return 0;
+
+free_sas_phy:
+ hpsa_free_sas_phy(hpsa_sas_phy);
+free_sas_port:
+ hpsa_free_sas_port(hpsa_sas_port);
+free_sas_node:
+ hpsa_free_sas_node(hpsa_sas_node);
+
+ return rc;
+}
+
+static void hpsa_delete_sas_host(struct ctlr_info *h)
+{
+ hpsa_free_sas_node(h->sas_host);
+}
+
+static int hpsa_add_sas_device(struct hpsa_sas_node *hpsa_sas_node,
+ struct hpsa_scsi_dev_t *device)
+{
+ int rc;
+ struct hpsa_sas_port *hpsa_sas_port;
+ struct sas_rphy *rphy;
+
+ hpsa_sas_port = hpsa_alloc_sas_port(hpsa_sas_node, device->sas_address);
+ if (!hpsa_sas_port)
+ return -ENOMEM;
+
+ rphy = sas_end_device_alloc(hpsa_sas_port->port);
+ if (!rphy) {
+ rc = -ENODEV;
+ goto free_sas_port;
+ }
+
+ hpsa_sas_port->rphy = rphy;
+ device->sas_port = hpsa_sas_port;
+
+ rc = hpsa_sas_port_add_rphy(hpsa_sas_port, rphy);
+ if (rc)
+ goto free_sas_port;
+
+ return 0;
+
+free_sas_port:
+ hpsa_free_sas_port(hpsa_sas_port);
+ device->sas_port = NULL;
+
+ return rc;
+}
+
+static void hpsa_remove_sas_device(struct hpsa_scsi_dev_t *device)
+{
+ if (device->sas_port) {
+ hpsa_free_sas_port(device->sas_port);
+ device->sas_port = NULL;
+ }
+}
+
+static int
+hpsa_sas_get_linkerrors(struct sas_phy *phy)
+{
+ return 0;
+}
+
+static int
+hpsa_sas_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier)
+{
+ return 0;
+}
+
+static int
+hpsa_sas_get_bay_identifier(struct sas_rphy *rphy)
+{
+ return -ENXIO;
+}
+
+static int
+hpsa_sas_phy_reset(struct sas_phy *phy, int hard_reset)
+{
+ return 0;
+}
+
+static int
+hpsa_sas_phy_enable(struct sas_phy *phy, int enable)
+{
+ return 0;
+}
+
+static int
+hpsa_sas_phy_setup(struct sas_phy *phy)
+{
+ return 0;
+}
+
+static void
+hpsa_sas_phy_release(struct sas_phy *phy)
+{
+}
+
+static int
+hpsa_sas_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates)
+{
+ return -EINVAL;
+}
+
+/* SMP = Serial Management Protocol */
+static int
+hpsa_sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
+struct request *req)
+{
+ return -EINVAL;
+}
+
+static struct sas_function_template hpsa_sas_transport_functions = {
+ .get_linkerrors = hpsa_sas_get_linkerrors,
+ .get_enclosure_identifier = hpsa_sas_get_enclosure_identifier,
+ .get_bay_identifier = hpsa_sas_get_bay_identifier,
+ .phy_reset = hpsa_sas_phy_reset,
+ .phy_enable = hpsa_sas_phy_enable,
+ .phy_setup = hpsa_sas_phy_setup,
+ .phy_release = hpsa_sas_phy_release,
+ .set_phy_speed = hpsa_sas_phy_speed,
+ .smp_handler = hpsa_sas_smp_handler,
+};
+
/*
* This is it. Register the PCI driver information for the cards we control
* the OS will call our registered routines when it finds one of our cards.
*/
static int __init hpsa_init(void)
{
- return pci_register_driver(&hpsa_pci_driver);
+ int rc;
+
+ hpsa_sas_transport_template =
+ sas_attach_transport(&hpsa_sas_transport_functions);
+ if (!hpsa_sas_transport_template)
+ return -ENODEV;
+
+ rc = pci_register_driver(&hpsa_pci_driver);
+
+ if (rc)
+ sas_release_transport(hpsa_sas_transport_template);
+
+ return rc;
}
static void __exit hpsa_cleanup(void)
{
pci_unregister_driver(&hpsa_pci_driver);
+ sas_release_transport(hpsa_sas_transport_template);
}
static void __attribute__((unused)) verify_offsets(void)
Code Review / kvmfornfv.git / blobdiff