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mtip32xx: Changes to sysfs entries 

* Formatted the output of 'registers' entry
* Added "Commands in Q' to output of 'registers' entry
* Added a new entry 'flags'

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 2012-05-29 18:44:54 -07:00 committed by Jens Axboe
parent 8ce800935d
commit b77874c969
2 changed files with 67 additions and 21 deletions
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12
Documentation/ABI/testing/sysfs-block-rssd
View File

@ -6,13 +6,21 @@ Description: This is a read-only file. Dumps below driver information and
hardware registers.
- S ACTive
- Command Issue
- Allocated
- 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.
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

76
drivers/block/mtip32xx/mtip32xx.c
View File

@ -2564,40 +2564,58 @@ static ssize_t mtip_hw_show_registers(struct device *dev,
int size = 0;
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++)
size += sprintf(&buf[size], "0x%08x\n",
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
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++)
size += sprintf(&buf[size], "0x%08x\n",
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
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))
group_allocated =
dd->port->allocated[n/2] >> (32*(n&1));
else
group_allocated = dd->port->allocated[n];
size += sprintf(&buf[size], "0x%08x\n",
group_allocated);
size += sprintf(&buf[size], "%08X ", 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++)
size += sprintf(&buf[size], "0x%08x\n",
readl(dd->port->completed[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));
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;
}
@ -2619,8 +2637,24 @@ 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.
@ -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))
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;
}
@ -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_status.attr);
sysfs_remove_file(kobj, &dev_attr_flags.attr);
return 0;
}