mtip32xx: Changes to sysfs entries (b77874c9) · Commits · e / devices / android_kernel_teracube_mt6765

Documentation/ABI/testing/sysfs-block-rssd

+10 −2

Original line number	Original line	Diff line number	Diff line
	@@ -6,13 +6,21 @@ Description: This is a read-only file. Dumps below driver information and
	hardware registers.		hardware registers.
	- S ACTive		- S ACTive
	- Command Issue		- Command Issue
	- Allocated
	- Completed		- Completed
	- PORT IRQ STAT		- PORT IRQ STAT
	- HOST IRQ STAT		- HOST IRQ STAT
			- Allocated
			- Commands in Q

	What: /sys/block/rssd*/status		What: /sys/block/rssd*/status
	Date: April 2012		Date: April 2012
	KernelVersion: 3.4		KernelVersion: 3.4
	Contact: Asai Thambi S P <asamymuthupa@micron.com>		Contact: Asai Thambi S P <asamymuthupa@micron.com>
	Description: This is a read-only file. Indicates the status of the device.		Description: This is a read-only file. Indicates the status of the device.

			What: /sys/block/rssd*/flags
			Date: May 2012
			KernelVersion: 3.5
			Contact: Asai Thambi S P <asamymuthupa@micron.com>
			Description: This is a read-only file. Dumps the flags in port and driver
			data structure

drivers/block/mtip32xx/mtip32xx.c

+57 −19

Original line number	Original line	Diff line number	Diff line
	@@ -2564,40 +2564,58 @@ static ssize_t mtip_hw_show_registers(struct device *dev,
	int size = 0;		int size = 0;
	int n;		int n;

	size += sprintf(&buf[size], "S ACTive:\n");		size += sprintf(&buf[size], "Hardware\n--------\n");
			size += sprintf(&buf[size], "S ACTive : [ 0x");

	for (n = 0; n < dd->slot_groups; n++)		for (n = dd->slot_groups-1; n >= 0; n--)
	size += sprintf(&buf[size], "0x%08x\n",		size += sprintf(&buf[size], "%08X ",
	readl(dd->port->s_active[n]));		readl(dd->port->s_active[n]));

	size += sprintf(&buf[size], "Command Issue:\n");		size += sprintf(&buf[size], "]\n");
			size += sprintf(&buf[size], "Command Issue : [ 0x");

	for (n = 0; n < dd->slot_groups; n++)		for (n = dd->slot_groups-1; n >= 0; n--)
	size += sprintf(&buf[size], "0x%08x\n",		size += sprintf(&buf[size], "%08X ",
	readl(dd->port->cmd_issue[n]));		readl(dd->port->cmd_issue[n]));

	size += sprintf(&buf[size], "Allocated:\n");		size += sprintf(&buf[size], "]\n");
			size += sprintf(&buf[size], "Completed : [ 0x");

	for (n = 0; n < dd->slot_groups; n++) {		for (n = dd->slot_groups-1; n >= 0; n--)
			size += sprintf(&buf[size], "%08X ",
			readl(dd->port->completed[n]));

			size += sprintf(&buf[size], "]\n");
			size += sprintf(&buf[size], "PORT IRQ STAT : [ 0x%08X ]\n",
			readl(dd->port->mmio + PORT_IRQ_STAT));
			size += sprintf(&buf[size], "HOST IRQ STAT : [ 0x%08X ]\n",
			readl(dd->mmio + HOST_IRQ_STAT));
			size += sprintf(&buf[size], "\n");

			size += sprintf(&buf[size], "Local\n-----\n");
			size += sprintf(&buf[size], "Allocated : [ 0x");

			for (n = dd->slot_groups-1; n >= 0; n--) {
	if (sizeof(long) > sizeof(u32))		if (sizeof(long) > sizeof(u32))
	group_allocated =		group_allocated =
	dd->port->allocated[n/2] >> (32*(n&1));		dd->port->allocated[n/2] >> (32*(n&1));
	else		else
	group_allocated = dd->port->allocated[n];		group_allocated = dd->port->allocated[n];
	size += sprintf(&buf[size], "0x%08x\n",		size += sprintf(&buf[size], "%08X ", group_allocated);
	group_allocated);
	}		}
			size += sprintf(&buf[size], "]\n");

	size += sprintf(&buf[size], "Completed:\n");		size += sprintf(&buf[size], "Commands in Q: [ 0x");

	for (n = 0; n < dd->slot_groups; n++)		for (n = dd->slot_groups-1; n >= 0; n--) {
	size += sprintf(&buf[size], "0x%08x\n",		if (sizeof(long) > sizeof(u32))
	readl(dd->port->completed[n]));		group_allocated =
			dd->port->cmds_to_issue[n/2] >> (32*(n&1));
	size += sprintf(&buf[size], "PORT IRQ STAT : 0x%08x\n",		else
	readl(dd->port->mmio + PORT_IRQ_STAT));		group_allocated = dd->port->cmds_to_issue[n];
	size += sprintf(&buf[size], "HOST IRQ STAT : 0x%08x\n",		size += sprintf(&buf[size], "%08X ", group_allocated);
	readl(dd->mmio + HOST_IRQ_STAT));		}
			size += sprintf(&buf[size], "]\n");

	return size;		return size;
	}		}
	@@ -2619,8 +2637,24 @@ static ssize_t mtip_hw_show_status(struct device *dev,
	return size;		return size;
	}		}

			static ssize_t mtip_hw_show_flags(struct device *dev,
			struct device_attribute *attr,
			char *buf)
			{
			struct driver_data *dd = dev_to_disk(dev)->private_data;
			int size = 0;

			size += sprintf(&buf[size], "Flag in port struct : [ %08lX ]\n",
			dd->port->flags);
			size += sprintf(&buf[size], "Flag in dd struct : [ %08lX ]\n",
			dd->dd_flag);

			return size;
			}

	static DEVICE_ATTR(registers, S_IRUGO, mtip_hw_show_registers, NULL);		static DEVICE_ATTR(registers, S_IRUGO, mtip_hw_show_registers, NULL);
	static DEVICE_ATTR(status, S_IRUGO, mtip_hw_show_status, NULL);		static DEVICE_ATTR(status, S_IRUGO, mtip_hw_show_status, NULL);
			static DEVICE_ATTR(flags, S_IRUGO, mtip_hw_show_flags, NULL);

	/*		/*
	* Create the sysfs related attributes.		* Create the sysfs related attributes.
	@@ -2643,6 +2677,9 @@ static int mtip_hw_sysfs_init(struct driver_data dd, struct kobject kobj)
	if (sysfs_create_file(kobj, &dev_attr_status.attr))		if (sysfs_create_file(kobj, &dev_attr_status.attr))
	dev_warn(&dd->pdev->dev,		dev_warn(&dd->pdev->dev,
	"Error creating 'status' sysfs entry\n");		"Error creating 'status' sysfs entry\n");
			if (sysfs_create_file(kobj, &dev_attr_flags.attr))
			dev_warn(&dd->pdev->dev,
			"Error creating 'flags' sysfs entry\n");
	return 0;		return 0;
	}		}

	@@ -2663,6 +2700,7 @@ static int mtip_hw_sysfs_exit(struct driver_data dd, struct kobject kobj)

	sysfs_remove_file(kobj, &dev_attr_registers.attr);		sysfs_remove_file(kobj, &dev_attr_registers.attr);
	sysfs_remove_file(kobj, &dev_attr_status.attr);		sysfs_remove_file(kobj, &dev_attr_status.attr);
			sysfs_remove_file(kobj, &dev_attr_flags.attr);

	return 0;		return 0;
	}		}