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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-09-13 11:22:10 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-09-13 11:22:10 -0700
commit719d631363a9728e4b082cb689b802ece4476f6c (patch)
treef0ea8e8c62621b7536f5216242bdc5dc5781a28e /hv-move-ringbuffer-bus-attributes-to-dev_groups.patch
parent44ea8a3f679a11e5ac3c5b174b645669e33fd8cf (diff)
downloadpatches-719d631363a9728e4b082cb689b802ece4476f6c.tar.gz
rename hv patches and document them better.
Diffstat (limited to 'hv-move-ringbuffer-bus-attributes-to-dev_groups.patch')
-rw-r--r--hv-move-ringbuffer-bus-attributes-to-dev_groups.patch296
1 files changed, 296 insertions, 0 deletions
diff --git a/hv-move-ringbuffer-bus-attributes-to-dev_groups.patch b/hv-move-ringbuffer-bus-attributes-to-dev_groups.patch
new file mode 100644
index 00000000000000..39c98824c8a132
--- /dev/null
+++ b/hv-move-ringbuffer-bus-attributes-to-dev_groups.patch
@@ -0,0 +1,296 @@
+From foo@baz Fri Sep 13 10:12:58 PDT 2013
+Date: Fri, 13 Sep 2013 10:12:58 -0700
+To: Greg KH <gregkh@linuxfoundation.org>
+From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Subject: 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.
+
+Cc: "K. Y. Srinivasan" <kys@microsoft.com>
+Cc: Haiyang Zhang <haiyangz@microsoft.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/hv/vmbus_drv.c | 230 +++++++++++++++++++++++++++++++------------------
+ 1 file changed, 146 insertions(+), 84 deletions(-)
+
+--- a/drivers/hv/vmbus_drv.c
++++ b/drivers/hv/vmbus_drv.c
+@@ -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_d
+ 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_sh
+ }
+ 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,
+ };
+
generated by cgit 1.2.3-korg (git 2.43.0) at 2026-03-01 17:38:12 +0000