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https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
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: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman
parent
1fdde16d1f
commit
98f4c65176
1 changed files with 146 additions and 84 deletions
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@ -46,11 +46,6 @@ static struct tasklet_struct msg_dpc;
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static struct completion probe_event;
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static int irq;
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struct hv_device_info {
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struct hv_ring_buffer_debug_info inbound;
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struct hv_ring_buffer_debug_info outbound;
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};
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static int vmbus_exists(void)
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{
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if (hv_acpi_dev == NULL)
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@ -59,17 +54,6 @@ static int vmbus_exists(void)
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return 0;
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}
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static void get_channel_info(struct hv_device *device,
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struct hv_device_info *info)
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{
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if (!device->channel)
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return;
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hv_ringbuffer_get_debuginfo(&device->channel->inbound, &info->inbound);
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hv_ringbuffer_get_debuginfo(&device->channel->outbound, &info->outbound);
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}
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#define VMBUS_ALIAS_LEN ((sizeof((struct hv_vmbus_device_id *)0)->guid) * 2)
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static void print_alias_name(struct hv_device *hv_dev, char *alias_name)
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{
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@ -78,56 +62,6 @@ static void print_alias_name(struct hv_device *hv_dev, char *alias_name)
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sprintf(&alias_name[i], "%02x", hv_dev->dev_type.b[i/2]);
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}
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/*
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* vmbus_show_device_attr - Show the device attribute in sysfs.
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*
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* This is invoked when user does a
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* "cat /sys/bus/vmbus/devices/<busdevice>/<attr name>"
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*/
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static ssize_t vmbus_show_device_attr(struct device *dev,
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struct device_attribute *dev_attr,
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char *buf)
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{
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struct hv_device *hv_dev = device_to_hv_device(dev);
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struct hv_device_info *device_info;
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int ret = 0;
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device_info = kzalloc(sizeof(struct hv_device_info), GFP_KERNEL);
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if (!device_info)
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return ret;
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get_channel_info(hv_dev, device_info);
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if (!strcmp(dev_attr->attr.name, "out_intr_mask")) {
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ret = sprintf(buf, "%d\n", device_info->outbound.current_interrupt_mask);
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} else if (!strcmp(dev_attr->attr.name, "out_read_index")) {
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ret = sprintf(buf, "%d\n", device_info->outbound.current_read_index);
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} else if (!strcmp(dev_attr->attr.name, "out_write_index")) {
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ret = sprintf(buf, "%d\n", device_info->outbound.current_write_index);
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} else if (!strcmp(dev_attr->attr.name, "out_read_bytes_avail")) {
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ret = sprintf(buf, "%d\n",
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device_info->outbound.bytes_avail_toread);
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} else if (!strcmp(dev_attr->attr.name, "out_write_bytes_avail")) {
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ret = sprintf(buf, "%d\n",
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device_info->outbound.bytes_avail_towrite);
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} else if (!strcmp(dev_attr->attr.name, "in_intr_mask")) {
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ret = sprintf(buf, "%d\n", device_info->inbound.current_interrupt_mask);
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} else if (!strcmp(dev_attr->attr.name, "in_read_index")) {
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ret = sprintf(buf, "%d\n", device_info->inbound.current_read_index);
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} else if (!strcmp(dev_attr->attr.name, "in_write_index")) {
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ret = sprintf(buf, "%d\n", device_info->inbound.current_write_index);
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} else if (!strcmp(dev_attr->attr.name, "in_read_bytes_avail")) {
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ret = sprintf(buf, "%d\n",
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device_info->inbound.bytes_avail_toread);
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} else if (!strcmp(dev_attr->attr.name, "in_write_bytes_avail")) {
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ret = sprintf(buf, "%d\n",
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device_info->inbound.bytes_avail_towrite);
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}
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kfree(device_info);
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return ret;
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}
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static u8 channel_monitor_group(struct vmbus_channel *channel)
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{
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return (u8)channel->offermsg.monitorid / 32;
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@ -313,6 +247,142 @@ static ssize_t client_monitor_conn_id_show(struct device *dev,
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}
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static DEVICE_ATTR_RO(client_monitor_conn_id);
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static ssize_t out_intr_mask_show(struct device *dev,
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struct device_attribute *dev_attr, char *buf)
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{
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struct hv_device *hv_dev = device_to_hv_device(dev);
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struct hv_ring_buffer_debug_info outbound;
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if (!hv_dev->channel)
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return -ENODEV;
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hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
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return sprintf(buf, "%d\n", outbound.current_interrupt_mask);
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}
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static DEVICE_ATTR_RO(out_intr_mask);
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static ssize_t out_read_index_show(struct device *dev,
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struct device_attribute *dev_attr, char *buf)
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{
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struct hv_device *hv_dev = device_to_hv_device(dev);
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struct hv_ring_buffer_debug_info outbound;
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if (!hv_dev->channel)
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return -ENODEV;
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hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
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return sprintf(buf, "%d\n", outbound.current_read_index);
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}
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static DEVICE_ATTR_RO(out_read_index);
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static ssize_t out_write_index_show(struct device *dev,
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struct device_attribute *dev_attr,
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char *buf)
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{
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struct hv_device *hv_dev = device_to_hv_device(dev);
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struct hv_ring_buffer_debug_info outbound;
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if (!hv_dev->channel)
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return -ENODEV;
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hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
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return sprintf(buf, "%d\n", outbound.current_write_index);
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}
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static DEVICE_ATTR_RO(out_write_index);
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static ssize_t out_read_bytes_avail_show(struct device *dev,
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struct device_attribute *dev_attr,
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char *buf)
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{
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struct hv_device *hv_dev = device_to_hv_device(dev);
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struct hv_ring_buffer_debug_info outbound;
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if (!hv_dev->channel)
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return -ENODEV;
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hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
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return sprintf(buf, "%d\n", outbound.bytes_avail_toread);
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}
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static DEVICE_ATTR_RO(out_read_bytes_avail);
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static ssize_t out_write_bytes_avail_show(struct device *dev,
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struct device_attribute *dev_attr,
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char *buf)
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{
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struct hv_device *hv_dev = device_to_hv_device(dev);
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struct hv_ring_buffer_debug_info outbound;
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if (!hv_dev->channel)
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return -ENODEV;
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hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
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return sprintf(buf, "%d\n", outbound.bytes_avail_towrite);
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}
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static DEVICE_ATTR_RO(out_write_bytes_avail);
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static ssize_t in_intr_mask_show(struct device *dev,
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struct device_attribute *dev_attr, char *buf)
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{
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struct hv_device *hv_dev = device_to_hv_device(dev);
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struct hv_ring_buffer_debug_info inbound;
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if (!hv_dev->channel)
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return -ENODEV;
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hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
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return sprintf(buf, "%d\n", inbound.current_interrupt_mask);
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}
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static DEVICE_ATTR_RO(in_intr_mask);
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static ssize_t in_read_index_show(struct device *dev,
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struct device_attribute *dev_attr, char *buf)
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{
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struct hv_device *hv_dev = device_to_hv_device(dev);
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struct hv_ring_buffer_debug_info inbound;
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if (!hv_dev->channel)
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return -ENODEV;
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hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
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return sprintf(buf, "%d\n", inbound.current_read_index);
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}
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static DEVICE_ATTR_RO(in_read_index);
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static ssize_t in_write_index_show(struct device *dev,
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struct device_attribute *dev_attr, char *buf)
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{
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struct hv_device *hv_dev = device_to_hv_device(dev);
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struct hv_ring_buffer_debug_info inbound;
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if (!hv_dev->channel)
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return -ENODEV;
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hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
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return sprintf(buf, "%d\n", inbound.current_write_index);
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}
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static DEVICE_ATTR_RO(in_write_index);
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static ssize_t in_read_bytes_avail_show(struct device *dev,
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struct device_attribute *dev_attr,
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char *buf)
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{
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struct hv_device *hv_dev = device_to_hv_device(dev);
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struct hv_ring_buffer_debug_info inbound;
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if (!hv_dev->channel)
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return -ENODEV;
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hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
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return sprintf(buf, "%d\n", inbound.bytes_avail_toread);
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}
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static DEVICE_ATTR_RO(in_read_bytes_avail);
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static ssize_t in_write_bytes_avail_show(struct device *dev,
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struct device_attribute *dev_attr,
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char *buf)
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{
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struct hv_device *hv_dev = device_to_hv_device(dev);
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struct hv_ring_buffer_debug_info inbound;
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if (!hv_dev->channel)
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return -ENODEV;
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hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
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return sprintf(buf, "%d\n", inbound.bytes_avail_towrite);
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}
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static DEVICE_ATTR_RO(in_write_bytes_avail);
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/* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
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static struct attribute *vmbus_attrs[] = {
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&dev_attr_id.attr,
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&dev_attr_state.attr,
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@ -326,27 +396,20 @@ static struct attribute *vmbus_attrs[] = {
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&dev_attr_client_monitor_latency.attr,
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&dev_attr_server_monitor_conn_id.attr,
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&dev_attr_client_monitor_conn_id.attr,
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&dev_attr_out_intr_mask.attr,
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&dev_attr_out_read_index.attr,
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&dev_attr_out_write_index.attr,
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&dev_attr_out_read_bytes_avail.attr,
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&dev_attr_out_write_bytes_avail.attr,
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&dev_attr_in_intr_mask.attr,
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&dev_attr_in_read_index.attr,
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&dev_attr_in_write_index.attr,
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&dev_attr_in_read_bytes_avail.attr,
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&dev_attr_in_write_bytes_avail.attr,
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NULL,
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};
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ATTRIBUTE_GROUPS(vmbus);
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/* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
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static struct device_attribute vmbus_device_attrs[] = {
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__ATTR(out_intr_mask, S_IRUGO, vmbus_show_device_attr, NULL),
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__ATTR(out_read_index, S_IRUGO, vmbus_show_device_attr, NULL),
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__ATTR(out_write_index, S_IRUGO, vmbus_show_device_attr, NULL),
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__ATTR(out_read_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
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__ATTR(out_write_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
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__ATTR(in_intr_mask, S_IRUGO, vmbus_show_device_attr, NULL),
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__ATTR(in_read_index, S_IRUGO, vmbus_show_device_attr, NULL),
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__ATTR(in_write_index, S_IRUGO, vmbus_show_device_attr, NULL),
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__ATTR(in_read_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
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__ATTR(in_write_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
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__ATTR_NULL
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};
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/*
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* vmbus_uevent - add uevent for our device
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*
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@ -494,7 +557,6 @@ static struct bus_type hv_bus = {
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.remove = vmbus_remove,
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.probe = vmbus_probe,
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.uevent = vmbus_uevent,
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.dev_attrs = vmbus_device_attrs,
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.dev_groups = vmbus_groups,
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};
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