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mtip32xx: Remove 'registers' and 'flags' from sysfs

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This patch removes entries 'registers' and 'flags' from sysfs. Updated ABI file
to reflect this change.

Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Asai Thambi S P 2012-06-04 12:43:03 -07:00 committed by Jens Axboe
parent 9b2ea86bc9
commit 7412ff139d
2 changed files with 1 additions and 112 deletions
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21
Documentation/ABI/testing/sysfs-block-rssd
View file

@ -1,26 +1,5 @@
What: /sys/block/rssd*/registers
Date: March 2012
KernelVersion: 3.3
Contact: Asai Thambi S P <asamymuthupa@micron.com>
Description: This is a read-only file. Dumps below driver information and
hardware registers.
- S ACTive
- Command Issue
- Completed
- PORT IRQ STAT
- HOST IRQ STAT
- Allocated
- Commands in Q
What: /sys/block/rssd*/status
Date: April 2012
KernelVersion: 3.4
Contact: Asai Thambi S P <asamymuthupa@micron.com>
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

92
drivers/block/mtip32xx/mtip32xx.c
View file

@ -2546,7 +2546,7 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd,
}
/*
* Sysfs register/status dump.
* Sysfs status dump.
*
* @dev Pointer to the device structure, passed by the kernrel.
* @attr Pointer to the device_attribute structure passed by the kernel.
@ -2555,71 +2555,6 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd,
* return value
* The size, in bytes, of the data copied into buf.
*/
static ssize_t mtip_hw_show_registers(struct device *dev,
struct device_attribute *attr,
char *buf)
{
u32 group_allocated;
struct driver_data *dd = dev_to_disk(dev)->private_data;
int size = 0;
int n;
size += sprintf(&buf[size], "Hardware\n--------\n");
size += sprintf(&buf[size], "S ACTive : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
readl(dd->port->s_active[n]));
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "Command Issue : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
readl(dd->port->cmd_issue[n]));
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "Completed : [ 0x");
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))
group_allocated =
dd->port->allocated[n/2] >> (32*(n&1));
else
group_allocated = dd->port->allocated[n];
size += sprintf(&buf[size], "%08X ", group_allocated);
}
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "Commands in Q: [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--) {
if (sizeof(long) > sizeof(u32))
group_allocated =
dd->port->cmds_to_issue[n/2] >> (32*(n&1));
else
group_allocated = dd->port->cmds_to_issue[n];
size += sprintf(&buf[size], "%08X ", group_allocated);
}
size += sprintf(&buf[size], "]\n");
return size;
}
static ssize_t mtip_hw_show_status(struct device *dev,
struct device_attribute *attr,
char *buf)
@ -2637,24 +2572,7 @@ static ssize_t mtip_hw_show_status(struct device *dev,
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(status, S_IRUGO, mtip_hw_show_status, NULL);
static DEVICE_ATTR(flags, S_IRUGO, mtip_hw_show_flags, NULL);
/*
* Create the sysfs related attributes.
@ -2671,15 +2589,9 @@ static int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj)
if (!kobj || !dd)
return -EINVAL;
if (sysfs_create_file(kobj, &dev_attr_registers.attr))
dev_warn(&dd->pdev->dev,
"Error creating 'registers' sysfs entry\n");
if (sysfs_create_file(kobj, &dev_attr_status.attr))
dev_warn(&dd->pdev->dev,
"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;
}
@ -2698,9 +2610,7 @@ static int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj)
if (!kobj || !dd)
return -EINVAL;
sysfs_remove_file(kobj, &dev_attr_registers.attr);
sysfs_remove_file(kobj, &dev_attr_status.attr);
sysfs_remove_file(kobj, &dev_attr_flags.attr);
return 0;
}