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Commit 98f4c651 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
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hv: move ringbuffer bus attributes to dev_groups 

This moves the ringbuffer bus attributes to the dev_groups structure,
deletes the now unneeded struct hv_device_info, and removes some now
unused functions, and variables as everything is now moved to the
dev_groups structure, dev_attrs is no longer needed.
Tested-by: default avatar"K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 1fdde16d
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Inline Side-by-side
Showing with 146 additions and 84 deletions
drivers/hv/vmbus_drv.c
View file @ 98f4c651
......@@ -46,11 +46,6 @@ static struct tasklet_struct msg_dpc;
static struct completion probe_event;
static int irq;
struct hv_device_info {
struct hv_ring_buffer_debug_info inbound;
struct hv_ring_buffer_debug_info outbound;
};
static int vmbus_exists(void)
{
if (hv_acpi_dev == NULL)
......@@ -59,17 +54,6 @@ static int vmbus_exists(void)
return 0;
}
static void get_channel_info(struct hv_device *device,
struct hv_device_info *info)
{
if (!device->channel)
return;
hv_ringbuffer_get_debuginfo(&device->channel->inbound, &info->inbound);
hv_ringbuffer_get_debuginfo(&device->channel->outbound, &info->outbound);
}
#define VMBUS_ALIAS_LEN ((sizeof((struct hv_vmbus_device_id *)0)->guid) * 2)
static void print_alias_name(struct hv_device *hv_dev, char *alias_name)
{
......@@ -78,56 +62,6 @@ static void print_alias_name(struct hv_device *hv_dev, char *alias_name)
sprintf(&alias_name[i], "%02x", hv_dev->dev_type.b[i/2]);
}
/*
* vmbus_show_device_attr - Show the device attribute in sysfs.
*
* This is invoked when user does a
* "cat /sys/bus/vmbus/devices/<busdevice>/<attr name>"
*/
static ssize_t vmbus_show_device_attr(struct device *dev,
struct device_attribute *dev_attr,
char *buf)
{
struct hv_device *hv_dev = device_to_hv_device(dev);
struct hv_device_info *device_info;
int ret = 0;
device_info = kzalloc(sizeof(struct hv_device_info), GFP_KERNEL);
if (!device_info)
return ret;
get_channel_info(hv_dev, device_info);
if (!strcmp(dev_attr->attr.name, "out_intr_mask")) {
ret = sprintf(buf, "%d\n", device_info->outbound.current_interrupt_mask);
} else if (!strcmp(dev_attr->attr.name, "out_read_index")) {
ret = sprintf(buf, "%d\n", device_info->outbound.current_read_index);
} else if (!strcmp(dev_attr->attr.name, "out_write_index")) {
ret = sprintf(buf, "%d\n", device_info->outbound.current_write_index);
} else if (!strcmp(dev_attr->attr.name, "out_read_bytes_avail")) {
ret = sprintf(buf, "%d\n",
device_info->outbound.bytes_avail_toread);
} else if (!strcmp(dev_attr->attr.name, "out_write_bytes_avail")) {
ret = sprintf(buf, "%d\n",
device_info->outbound.bytes_avail_towrite);
} else if (!strcmp(dev_attr->attr.name, "in_intr_mask")) {
ret = sprintf(buf, "%d\n", device_info->inbound.current_interrupt_mask);
} else if (!strcmp(dev_attr->attr.name, "in_read_index")) {
ret = sprintf(buf, "%d\n", device_info->inbound.current_read_index);
} else if (!strcmp(dev_attr->attr.name, "in_write_index")) {
ret = sprintf(buf, "%d\n", device_info->inbound.current_write_index);
} else if (!strcmp(dev_attr->attr.name, "in_read_bytes_avail")) {
ret = sprintf(buf, "%d\n",
device_info->inbound.bytes_avail_toread);
} else if (!strcmp(dev_attr->attr.name, "in_write_bytes_avail")) {
ret = sprintf(buf, "%d\n",
device_info->inbound.bytes_avail_towrite);
}
kfree(device_info);
return ret;
}
static u8 channel_monitor_group(struct vmbus_channel *channel)
{
return (u8)channel->offermsg.monitorid / 32;
......@@ -313,6 +247,142 @@ static ssize_t client_monitor_conn_id_show(struct device *dev,
}
static DEVICE_ATTR_RO(client_monitor_conn_id);
static ssize_t out_intr_mask_show(struct device *dev,
struct device_attribute *dev_attr, char *buf)
{
struct hv_device *hv_dev = device_to_hv_device(dev);
struct hv_ring_buffer_debug_info outbound;
if (!hv_dev->channel)
return -ENODEV;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
return sprintf(buf, "%d\n", outbound.current_interrupt_mask);
}
static DEVICE_ATTR_RO(out_intr_mask);
static ssize_t out_read_index_show(struct device *dev,
struct device_attribute *dev_attr, char *buf)
{
struct hv_device *hv_dev = device_to_hv_device(dev);
struct hv_ring_buffer_debug_info outbound;
if (!hv_dev->channel)
return -ENODEV;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
return sprintf(buf, "%d\n", outbound.current_read_index);
}
static DEVICE_ATTR_RO(out_read_index);
static ssize_t out_write_index_show(struct device *dev,
struct device_attribute *dev_attr,
char *buf)
{
struct hv_device *hv_dev = device_to_hv_device(dev);
struct hv_ring_buffer_debug_info outbound;
if (!hv_dev->channel)
return -ENODEV;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
return sprintf(buf, "%d\n", outbound.current_write_index);
}
static DEVICE_ATTR_RO(out_write_index);
static ssize_t out_read_bytes_avail_show(struct device *dev,
struct device_attribute *dev_attr,
char *buf)
{
struct hv_device *hv_dev = device_to_hv_device(dev);
struct hv_ring_buffer_debug_info outbound;
if (!hv_dev->channel)
return -ENODEV;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
return sprintf(buf, "%d\n", outbound.bytes_avail_toread);
}
static DEVICE_ATTR_RO(out_read_bytes_avail);
static ssize_t out_write_bytes_avail_show(struct device *dev,
struct device_attribute *dev_attr,
char *buf)
{
struct hv_device *hv_dev = device_to_hv_device(dev);
struct hv_ring_buffer_debug_info outbound;
if (!hv_dev->channel)
return -ENODEV;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
return sprintf(buf, "%d\n", outbound.bytes_avail_towrite);
}
static DEVICE_ATTR_RO(out_write_bytes_avail);
static ssize_t in_intr_mask_show(struct device *dev,
struct device_attribute *dev_attr, char *buf)
{
struct hv_device *hv_dev = device_to_hv_device(dev);
struct hv_ring_buffer_debug_info inbound;
if (!hv_dev->channel)
return -ENODEV;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
return sprintf(buf, "%d\n", inbound.current_interrupt_mask);
}
static DEVICE_ATTR_RO(in_intr_mask);
static ssize_t in_read_index_show(struct device *dev,
struct device_attribute *dev_attr, char *buf)
{
struct hv_device *hv_dev = device_to_hv_device(dev);
struct hv_ring_buffer_debug_info inbound;
if (!hv_dev->channel)
return -ENODEV;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
return sprintf(buf, "%d\n", inbound.current_read_index);
}
static DEVICE_ATTR_RO(in_read_index);
static ssize_t in_write_index_show(struct device *dev,
struct device_attribute *dev_attr, char *buf)
{
struct hv_device *hv_dev = device_to_hv_device(dev);
struct hv_ring_buffer_debug_info inbound;
if (!hv_dev->channel)
return -ENODEV;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
return sprintf(buf, "%d\n", inbound.current_write_index);
}
static DEVICE_ATTR_RO(in_write_index);
static ssize_t in_read_bytes_avail_show(struct device *dev,
struct device_attribute *dev_attr,
char *buf)
{
struct hv_device *hv_dev = device_to_hv_device(dev);
struct hv_ring_buffer_debug_info inbound;
if (!hv_dev->channel)
return -ENODEV;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
return sprintf(buf, "%d\n", inbound.bytes_avail_toread);
}
static DEVICE_ATTR_RO(in_read_bytes_avail);
static ssize_t in_write_bytes_avail_show(struct device *dev,
struct device_attribute *dev_attr,
char *buf)
{
struct hv_device *hv_dev = device_to_hv_device(dev);
struct hv_ring_buffer_debug_info inbound;
if (!hv_dev->channel)
return -ENODEV;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
return sprintf(buf, "%d\n", inbound.bytes_avail_towrite);
}
static DEVICE_ATTR_RO(in_write_bytes_avail);
/* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
static struct attribute *vmbus_attrs[] = {
&dev_attr_id.attr,
&dev_attr_state.attr,
......@@ -326,27 +396,20 @@ static struct attribute *vmbus_attrs[] = {
&dev_attr_client_monitor_latency.attr,
&dev_attr_server_monitor_conn_id.attr,
&dev_attr_client_monitor_conn_id.attr,
&dev_attr_out_intr_mask.attr,
&dev_attr_out_read_index.attr,
&dev_attr_out_write_index.attr,
&dev_attr_out_read_bytes_avail.attr,
&dev_attr_out_write_bytes_avail.attr,
&dev_attr_in_intr_mask.attr,
&dev_attr_in_read_index.attr,
&dev_attr_in_write_index.attr,
&dev_attr_in_read_bytes_avail.attr,
&dev_attr_in_write_bytes_avail.attr,
NULL,
};
ATTRIBUTE_GROUPS(vmbus);
/* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
static struct device_attribute vmbus_device_attrs[] = {
__ATTR(out_intr_mask, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR(out_read_index, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR(out_write_index, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR(out_read_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR(out_write_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR(in_intr_mask, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR(in_read_index, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR(in_write_index, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR(in_read_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR(in_write_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR_NULL
};
/*
* vmbus_uevent - add uevent for our device
*
......@@ -494,7 +557,6 @@ static struct bus_type hv_bus = {
.remove = vmbus_remove,
.probe = vmbus_probe,
.uevent = vmbus_uevent,
.dev_attrs = vmbus_device_attrs,
.dev_groups = vmbus_groups,
};
......
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