[SCSI] hpsa add sysfs debug switch for raid map debugging messages (2ba8bfc8) · Commits · jan.koester / Linux

drivers/scsi/hpsa.c

+64 −0

Original line number	Original line	Diff line number	Diff line
	@@ -312,6 +312,31 @@ static ssize_t host_store_hp_ssd_smart_path_status(struct device *dev,
	return count;		return count;
	}		}

			static ssize_t host_store_raid_offload_debug(struct device *dev,
			struct device_attribute *attr,
			const char *buf, size_t count)
			{
			int debug_level, len;
			struct ctlr_info *h;
			struct Scsi_Host *shost = class_to_shost(dev);
			char tmpbuf[10];

			if (!capable(CAP_SYS_ADMIN) \|\| !capable(CAP_SYS_RAWIO))
			return -EACCES;
			len = count > sizeof(tmpbuf) - 1 ? sizeof(tmpbuf) - 1 : count;
			strncpy(tmpbuf, buf, len);
			tmpbuf[len] = '\0';
			if (sscanf(tmpbuf, "%d", &debug_level) != 1)
			return -EINVAL;
			if (debug_level < 0)
			debug_level = 0;
			h = shost_to_hba(shost);
			h->raid_offload_debug = debug_level;
			dev_warn(&h->pdev->dev, "hpsa: Set raid_offload_debug level = %d\n",
			h->raid_offload_debug);
			return count;
			}

	static ssize_t host_store_rescan(struct device *dev,		static ssize_t host_store_rescan(struct device *dev,
	struct device_attribute *attr,		struct device_attribute *attr,
	const char *buf, size_t count)		const char *buf, size_t count)
	@@ -585,6 +610,8 @@ static DEVICE_ATTR(hp_ssd_smart_path_enabled, S_IRUGO,
	static DEVICE_ATTR(hp_ssd_smart_path_status, S_IWUSR\|S_IRUGO\|S_IROTH,		static DEVICE_ATTR(hp_ssd_smart_path_status, S_IWUSR\|S_IRUGO\|S_IROTH,
	host_show_hp_ssd_smart_path_status,		host_show_hp_ssd_smart_path_status,
	host_store_hp_ssd_smart_path_status);		host_store_hp_ssd_smart_path_status);
			static DEVICE_ATTR(raid_offload_debug, S_IWUSR, NULL,
			host_store_raid_offload_debug);
	static DEVICE_ATTR(firmware_revision, S_IRUGO,		static DEVICE_ATTR(firmware_revision, S_IRUGO,
	host_show_firmware_revision, NULL);		host_show_firmware_revision, NULL);
	static DEVICE_ATTR(commands_outstanding, S_IRUGO,		static DEVICE_ATTR(commands_outstanding, S_IRUGO,
	@@ -609,6 +636,7 @@ static struct device_attribute *hpsa_shost_attrs[] = {
	&dev_attr_transport_mode,		&dev_attr_transport_mode,
	&dev_attr_resettable,		&dev_attr_resettable,
	&dev_attr_hp_ssd_smart_path_status,		&dev_attr_hp_ssd_smart_path_status,
			&dev_attr_raid_offload_debug,
	NULL,		NULL,
	};		};

	@@ -2020,6 +2048,10 @@ static void hpsa_debug_map_buff(struct ctlr_info *h, int rc,
	if (rc != 0)		if (rc != 0)
	return;		return;

			/* Show details only if debugging has been activated. */
			if (h->raid_offload_debug < 2)
			return;

	dev_info(&h->pdev->dev, "structure_size = %u\n",		dev_info(&h->pdev->dev, "structure_size = %u\n",
	le32_to_cpu(map_buff->structure_size));		le32_to_cpu(map_buff->structure_size));
	dev_info(&h->pdev->dev, "volume_blk_size = %u\n",		dev_info(&h->pdev->dev, "volume_blk_size = %u\n",
	@@ -2505,6 +2537,17 @@ static int hpsa_get_pdisk_of_ioaccel2(struct ctlr_info *h,
	scsi_nexus = cpu_to_le32((u32) c2a->scsi_nexus);		scsi_nexus = cpu_to_le32((u32) c2a->scsi_nexus);
	find = c2a->scsi_nexus;		find = c2a->scsi_nexus;

			if (h->raid_offload_debug > 0)
			dev_info(&h->pdev->dev,
			"%s: scsi_nexus:0x%08x device id: 0x%02x%02x%02x%02x %02x%02x%02x%02x %02x%02x%02x%02x %02x%02x%02x%02x\n",
			__func__, scsi_nexus,
			d->device_id[0], d->device_id[1], d->device_id[2],
			d->device_id[3], d->device_id[4], d->device_id[5],
			d->device_id[6], d->device_id[7], d->device_id[8],
			d->device_id[9], d->device_id[10], d->device_id[11],
			d->device_id[12], d->device_id[13], d->device_id[14],
			d->device_id[15]);

	/* Get the list of physical devices */		/* Get the list of physical devices */
	physicals = kzalloc(reportsize, GFP_KERNEL);		physicals = kzalloc(reportsize, GFP_KERNEL);
	if (hpsa_scsi_do_report_phys_luns(h, (struct ReportLUNdata *) physicals,		if (hpsa_scsi_do_report_phys_luns(h, (struct ReportLUNdata *) physicals,
	@@ -2529,6 +2572,15 @@ static int hpsa_get_pdisk_of_ioaccel2(struct ctlr_info *h,
	found = 1;		found = 1;
	memcpy(scsi3addr, &((struct ReportExtendedLUNdata *)		memcpy(scsi3addr, &((struct ReportExtendedLUNdata *)
	physicals)->LUN[i][0], 8);		physicals)->LUN[i][0], 8);
			if (h->raid_offload_debug > 0)
			dev_info(&h->pdev->dev,
			"%s: Searched h=0x%08x, Found h=0x%08x, scsiaddr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
			__func__, find,
			((struct ReportExtendedLUNdata *)
			physicals)->LUN[i][20],
			scsi3addr[0], scsi3addr[1], scsi3addr[2],
			scsi3addr[3], scsi3addr[4], scsi3addr[5],
			scsi3addr[6], scsi3addr[7]);
	break; /* found it */		break; /* found it */
	}		}

	@@ -4077,6 +4129,13 @@ static int hpsa_send_reset_as_abort_ioaccel2(struct ctlr_info *h,
	return -1; /* not abortable */		return -1; /* not abortable */
	}		}

			if (h->raid_offload_debug > 0)
			dev_info(&h->pdev->dev,
			"Reset as abort: Abort requested on C%d:B%d:T%d:L%d scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
			h->scsi_host->host_no, dev->bus, dev->target, dev->lun,
			scsi3addr[0], scsi3addr[1], scsi3addr[2], scsi3addr[3],
			scsi3addr[4], scsi3addr[5], scsi3addr[6], scsi3addr[7]);

	if (!dev->offload_enabled) {		if (!dev->offload_enabled) {
	dev_warn(&h->pdev->dev,		dev_warn(&h->pdev->dev,
	"Can't abort: device is not operating in HP SSD Smart Path mode.\n");		"Can't abort: device is not operating in HP SSD Smart Path mode.\n");
	@@ -4090,6 +4149,11 @@ static int hpsa_send_reset_as_abort_ioaccel2(struct ctlr_info *h,
	}		}

	/* send the reset */		/* send the reset */
			if (h->raid_offload_debug > 0)
			dev_info(&h->pdev->dev,
			"Reset as abort: Resetting physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
			psa[0], psa[1], psa[2], psa[3],
			psa[4], psa[5], psa[6], psa[7]);
	rc = hpsa_send_reset(h, psa, HPSA_RESET_TYPE_TARGET);		rc = hpsa_send_reset(h, psa, HPSA_RESET_TYPE_TARGET);
	if (rc != 0) {		if (rc != 0) {
	dev_warn(&h->pdev->dev,		dev_warn(&h->pdev->dev,

drivers/scsi/hpsa.h

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -199,6 +199,7 @@ struct ctlr_info {
	CTLR_STATE_CHANGE_EVENT_AIO_CONFIG_CHANGE)		CTLR_STATE_CHANGE_EVENT_AIO_CONFIG_CHANGE)
	int acciopath_status;		int acciopath_status;
	int drv_req_rescan; /* flag for driver to request rescan event */		int drv_req_rescan; /* flag for driver to request rescan event */
			int raid_offload_debug;
	};		};
	#define HPSA_ABORT_MSG 0		#define HPSA_ABORT_MSG 0
	#define HPSA_DEVICE_RESET_MSG 1		#define HPSA_DEVICE_RESET_MSG 1