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
Jens Axboe
Родитель
8ce800935d
Коммит
b77874c969
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@ -6,13 +6,21 @@ Description: This is a read-only file. Dumps below driver information and
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hardware registers.
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- S ACTive
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- Command Issue
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- Allocated
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- Completed
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- PORT IRQ STAT
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- HOST IRQ STAT
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- Allocated
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- Commands in Q
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What: /sys/block/rssd*/status
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Date: April 2012
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KernelVersion: 3.4
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Contact: Asai Thambi S P <asamymuthupa@micron.com>
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Description: This is a read-only file. Indicates the status of the device.
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Description: This is a read-only file. Indicates the status of the device.
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What: /sys/block/rssd*/flags
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Date: May 2012
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KernelVersion: 3.5
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Contact: Asai Thambi S P <asamymuthupa@micron.com>
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Description: This is a read-only file. Dumps the flags in port and driver
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data structure
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@ -2564,40 +2564,58 @@ static ssize_t mtip_hw_show_registers(struct device *dev,
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int size = 0;
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int n;
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size += sprintf(&buf[size], "S ACTive:\n");
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size += sprintf(&buf[size], "Hardware\n--------\n");
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size += sprintf(&buf[size], "S ACTive : [ 0x");
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for (n = 0; n < dd->slot_groups; n++)
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size += sprintf(&buf[size], "0x%08x\n",
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for (n = dd->slot_groups-1; n >= 0; n--)
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size += sprintf(&buf[size], "%08X ",
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readl(dd->port->s_active[n]));
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size += sprintf(&buf[size], "Command Issue:\n");
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size += sprintf(&buf[size], "]\n");
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size += sprintf(&buf[size], "Command Issue : [ 0x");
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for (n = 0; n < dd->slot_groups; n++)
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size += sprintf(&buf[size], "0x%08x\n",
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for (n = dd->slot_groups-1; n >= 0; n--)
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size += sprintf(&buf[size], "%08X ",
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readl(dd->port->cmd_issue[n]));
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size += sprintf(&buf[size], "Allocated:\n");
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size += sprintf(&buf[size], "]\n");
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size += sprintf(&buf[size], "Completed : [ 0x");
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for (n = 0; n < dd->slot_groups; n++) {
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for (n = dd->slot_groups-1; n >= 0; n--)
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size += sprintf(&buf[size], "%08X ",
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readl(dd->port->completed[n]));
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size += sprintf(&buf[size], "]\n");
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size += sprintf(&buf[size], "PORT IRQ STAT : [ 0x%08X ]\n",
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readl(dd->port->mmio + PORT_IRQ_STAT));
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size += sprintf(&buf[size], "HOST IRQ STAT : [ 0x%08X ]\n",
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readl(dd->mmio + HOST_IRQ_STAT));
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size += sprintf(&buf[size], "\n");
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size += sprintf(&buf[size], "Local\n-----\n");
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size += sprintf(&buf[size], "Allocated : [ 0x");
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for (n = dd->slot_groups-1; n >= 0; n--) {
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if (sizeof(long) > sizeof(u32))
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group_allocated =
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dd->port->allocated[n/2] >> (32*(n&1));
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else
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group_allocated = dd->port->allocated[n];
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size += sprintf(&buf[size], "0x%08x\n",
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group_allocated);
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size += sprintf(&buf[size], "%08X ", group_allocated);
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}
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size += sprintf(&buf[size], "]\n");
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size += sprintf(&buf[size], "Completed:\n");
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size += sprintf(&buf[size], "Commands in Q: [ 0x");
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for (n = 0; n < dd->slot_groups; n++)
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size += sprintf(&buf[size], "0x%08x\n",
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readl(dd->port->completed[n]));
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size += sprintf(&buf[size], "PORT IRQ STAT : 0x%08x\n",
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readl(dd->port->mmio + PORT_IRQ_STAT));
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size += sprintf(&buf[size], "HOST IRQ STAT : 0x%08x\n",
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readl(dd->mmio + HOST_IRQ_STAT));
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for (n = dd->slot_groups-1; n >= 0; n--) {
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if (sizeof(long) > sizeof(u32))
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group_allocated =
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dd->port->cmds_to_issue[n/2] >> (32*(n&1));
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else
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group_allocated = dd->port->cmds_to_issue[n];
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size += sprintf(&buf[size], "%08X ", group_allocated);
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}
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size += sprintf(&buf[size], "]\n");
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return size;
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}
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@ -2619,8 +2637,24 @@ static ssize_t mtip_hw_show_status(struct device *dev,
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return size;
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}
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static ssize_t mtip_hw_show_flags(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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struct driver_data *dd = dev_to_disk(dev)->private_data;
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int size = 0;
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size += sprintf(&buf[size], "Flag in port struct : [ %08lX ]\n",
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dd->port->flags);
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size += sprintf(&buf[size], "Flag in dd struct : [ %08lX ]\n",
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dd->dd_flag);
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return size;
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}
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static DEVICE_ATTR(registers, S_IRUGO, mtip_hw_show_registers, NULL);
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static DEVICE_ATTR(status, S_IRUGO, mtip_hw_show_status, NULL);
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static DEVICE_ATTR(flags, S_IRUGO, mtip_hw_show_flags, NULL);
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/*
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* Create the sysfs related attributes.
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@ -2643,6 +2677,9 @@ static int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj)
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if (sysfs_create_file(kobj, &dev_attr_status.attr))
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dev_warn(&dd->pdev->dev,
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"Error creating 'status' sysfs entry\n");
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if (sysfs_create_file(kobj, &dev_attr_flags.attr))
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dev_warn(&dd->pdev->dev,
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"Error creating 'flags' sysfs entry\n");
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return 0;
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}
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@ -2663,6 +2700,7 @@ static int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj)
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sysfs_remove_file(kobj, &dev_attr_registers.attr);
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sysfs_remove_file(kobj, &dev_attr_status.attr);
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sysfs_remove_file(kobj, &dev_attr_flags.attr);
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return 0;
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}
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