From: Dave Carroll <david.carr...@microsemi.com>
- add sysfs device attributes, unique_id, lunid
and path_info.
Reviewed-by: Scott Teel <scott.t...@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barn...@microsemi.com>
Signed-off-by: Dave Carroll <david.carr...@microsemi.com>
Signed-off-by: Don Brace <don.br...@microsemi.com>
---
drivers/scsi/smartpqi/smartpqi.h | 3
drivers/scsi/smartpqi/smartpqi_init.c | 232 +++++++++++++++++++++++++++++++++
2 files changed, 235 insertions(+)
diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h
index fcc4b937de71..a39c324dedab 100644
--- a/drivers/scsi/smartpqi/smartpqi.h
+++ b/drivers/scsi/smartpqi/smartpqi.h
@@ -852,6 +852,7 @@ struct pqi_scsi_dev {
u8 scsi3addr[8];
__be64 wwid;
u8 volume_id[16];
+ u8 unique_id[16];
u8 is_physical_device : 1;
u8 is_external_raid_device : 1;
u8 target_lun_valid : 1;
@@ -898,6 +899,8 @@ struct pqi_scsi_dev {
#define CISS_VPD_LV_DEVICE_GEOMETRY 0xc1 /* vendor-specific page */
#define CISS_VPD_LV_BYPASS_STATUS 0xc2 /* vendor-specific page */
#define CISS_VPD_LV_STATUS 0xc3 /* vendor-specific page */
+#define SCSI_VPD_HEADER_SZ 4
+#define SCSI_VPD_DEVICE_ID_IDX 8 /* Index of page id in page */
#define VPD_PAGE (1 << 8)
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c
b/drivers/scsi/smartpqi/smartpqi_init.c
index 004a7b9aac26..20c8c85660e7 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -573,6 +573,79 @@ static inline int pqi_scsi_inquiry(struct pqi_ctrl_info
*ctrl_info,
buffer, buffer_length, vpd_page, NULL, NO_TIMEOUT);
}
+static bool pqi_vpd_page_supported(struct pqi_ctrl_info *ctrl_info,
+ u8 *scsi3addr, u16 vpd_page)
+{
+ int rc;
+ int i;
+ int pages;
+ unsigned char *buf, bufsize;
+
+ buf = kzalloc(256, GFP_KERNEL);
+ if (!buf)
+ return false;
+
+ /* Get the size of the page list first */
+ rc = pqi_scsi_inquiry(ctrl_info, scsi3addr,
+ VPD_PAGE | SCSI_VPD_SUPPORTED_PAGES,
+ buf, SCSI_VPD_HEADER_SZ);
+ if (rc != 0)
+ goto exit_unsupported;
+
+ pages = buf[3];
+ if ((pages + SCSI_VPD_HEADER_SZ) <= 255)
+ bufsize = pages + SCSI_VPD_HEADER_SZ;
+ else
+ bufsize = 255;
+
+ /* Get the whole VPD page list */
+ rc = pqi_scsi_inquiry(ctrl_info, scsi3addr,
+ VPD_PAGE | SCSI_VPD_SUPPORTED_PAGES,
+ buf, bufsize);
+ if (rc != 0)
+ goto exit_unsupported;
+
+ pages = buf[3];
+ for (i = 1; i <= pages; i++)
+ if (buf[3 + i] == vpd_page)
+ goto exit_supported;
+
+exit_unsupported:
+ kfree(buf);
+ return false;
+
+exit_supported:
+ kfree(buf);
+ return true;
+}
+
+static int pqi_get_device_id(struct pqi_ctrl_info *ctrl_info,
+ u8 *scsi3addr, u8 *device_id, int buflen)
+{
+ int rc;
+ unsigned char *buf;
+
+ if (!pqi_vpd_page_supported(ctrl_info, scsi3addr, SCSI_VPD_DEVICE_ID))
+ return 1; /* function not supported */
+
+ buf = kzalloc(64, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ rc = pqi_scsi_inquiry(ctrl_info, scsi3addr,
+ VPD_PAGE | SCSI_VPD_DEVICE_ID,
+ buf, 64);
+ if (rc == 0) {
+ if (buflen > 16)
+ buflen = 16;
+ memcpy(device_id, &buf[SCSI_VPD_DEVICE_ID_IDX], buflen);
+ }
+
+ kfree(buf);
+
+ return rc;
+}
+
static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info,
struct pqi_scsi_dev *device,
struct bmic_identify_physical_device *buffer,
@@ -1244,6 +1317,14 @@ static int pqi_get_device_info(struct pqi_ctrl_info
*ctrl_info,
}
}
+ if (pqi_get_device_id(ctrl_info, device->scsi3addr,
+ device->unique_id, sizeof(device->unique_id)) < 0)
+ dev_warn(&ctrl_info->pci_dev->dev,
+ "Can't get device id for scsi %d:%d:%d:%d\n",
+ ctrl_info->scsi_host->host_no,
+ device->bus, device->target,
+ device->lun);
+
out:
kfree(buffer);
@@ -1775,6 +1856,12 @@ static inline bool pqi_skip_device(u8 *scsi3addr)
return false;
}
+static inline bool pqi_expose_device(struct pqi_scsi_dev *device)
+{
+ return !device->is_physical_device ||
+ !pqi_skip_device(device->scsi3addr);
+}
+
static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info)
{
int i;
@@ -5722,6 +5809,145 @@ static struct device_attribute *pqi_shost_attrs[] = {
NULL
};
+static ssize_t pqi_unique_id_show(struct device *dev,
+ struct device_attribute *attr, char *buffer)
+{
+ struct pqi_ctrl_info *ctrl_info;
+ struct scsi_device *sdev;
+ struct pqi_scsi_dev *device;
+ unsigned long flags;
+ unsigned char uid[16];
+
+ sdev = to_scsi_device(dev);
+ ctrl_info = shost_to_hba(sdev->host);
+
+ spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
+
+ device = sdev->hostdata;
+ if (!device) {
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock,
+ flags);
+ return -ENODEV;
+ }
+ memcpy(uid, device->unique_id, sizeof(uid));
+
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
+
+ return snprintf(buffer, PAGE_SIZE, "%16phN", uid);
+}
+
+static ssize_t pqi_lunid_show(struct device *dev,
+ struct device_attribute *attr, char *buffer)
+{
+ struct pqi_ctrl_info *ctrl_info;
+ struct scsi_device *sdev;
+ struct pqi_scsi_dev *device;
+ unsigned long flags;
+ u8 lunid[8];
+
+ sdev = to_scsi_device(dev);
+ ctrl_info = shost_to_hba(sdev->host);
+
+ spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
+
+ device = sdev->hostdata;
+ if (!device) {
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock,
+ flags);
+ return -ENODEV;
+ }
+ memcpy(lunid, device->scsi3addr, sizeof(lunid));
+
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
+
+ return snprintf(buffer, PAGE_SIZE, "0x%8phN\n", lunid);
+}
+
+#define MAX_PATHS 8
+static ssize_t pqi_path_info_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pqi_ctrl_info *ctrl_info;
+ struct scsi_device *sdev;
+ struct pqi_scsi_dev *device;
+ 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);
+ ctrl_info = shost_to_hba(sdev->host);
+
+ spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
+
+ device = sdev->hostdata;
+ if (!device) {
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock,
+ flags);
+ return -ENODEV;
+ }
+
+ bay = device->bay;
+ for (i = 0; i < MAX_PATHS; i++) {
+ path_map_index = 1<<i;
+ if (i == device->active_path_index)
+ active = "Active";
+ else if (device->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 ",
+ ctrl_info->scsi_host->host_no,
+ device->bus, device->target,
+ device->lun,
+ scsi_device_type(device->devtype));
+
+ if (device->devtype == TYPE_RAID ||
+ pqi_is_logical_device(device))
+ goto end_buffer;
+
+ memcpy(&phys_connector, &device->phys_connector[i],
+ sizeof(phys_connector));
+ if (phys_connector[0] < '0')
+ phys_connector[0] = '0';
+ if (phys_connector[1] < '0')
+ phys_connector[1] = '0';
+
+ output_len += scnprintf(buf + output_len,
+ PAGE_SIZE - output_len,
+ "PORT: %.2s ", phys_connector);
+
+ box = device->box[i];
+ if (box != 0 && box != 0xFF)
+ output_len += scnprintf(buf + output_len,
+ PAGE_SIZE - output_len,
+ "BOX: %hhu ", box);
+
+ if ((device->devtype == TYPE_DISK ||
+ device->devtype == TYPE_ZBC) &&
+ pqi_expose_device(device))
+ output_len += scnprintf(buf + output_len,
+ PAGE_SIZE - output_len,
+ "BAY: %hhu ", bay);
+
+end_buffer:
+ output_len += scnprintf(buf + output_len,
+ PAGE_SIZE - output_len,
+ "%s\n", active);
+ }
+
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
+ return output_len;
+}
+
+
static ssize_t pqi_sas_address_show(struct device *dev,
struct device_attribute *attr, char *buffer)
{
@@ -5798,12 +6024,18 @@ static ssize_t pqi_raid_level_show(struct device *dev,
return snprintf(buffer, PAGE_SIZE, "%s\n", raid_level);
}
+static DEVICE_ATTR(lunid, 0444, pqi_lunid_show, NULL);
+static DEVICE_ATTR(unique_id, 0444, pqi_unique_id_show, NULL);
+static DEVICE_ATTR(path_info, 0444, pqi_path_info_show, NULL);
static DEVICE_ATTR(sas_address, 0444, pqi_sas_address_show, NULL);
static DEVICE_ATTR(ssd_smart_path_enabled, 0444,
pqi_ssd_smart_path_enabled_show, NULL);
static DEVICE_ATTR(raid_level, 0444, pqi_raid_level_show, NULL);
static struct device_attribute *pqi_sdev_attrs[] = {
+ &dev_attr_lunid,
+ &dev_attr_unique_id,
+ &dev_attr_path_info,
&dev_attr_sas_address,
&dev_attr_ssd_smart_path_enabled,
&dev_attr_raid_level,
