[PATCH 135/206] Staging: hv: Use the rinbuffer size info in struct storvsc_device_info

K. Y. Srinivasan
2011-05-10T09:55:18Z

Use the rinbuffer size info in struct storvsc_device_info.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
---
drivers/staging/hv/blkvsc_drv.c | 5 ++---
drivers/staging/hv/storvsc.c | 10 ++++------
drivers/staging/hv/storvsc_drv.c | 1 +
3 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/hv/blkvsc_drv.c b/drivers/staging/hv/blkvsc_drv.c
index eebaaee..c04aaa3 100644
--- a/drivers/staging/hv/blkvsc_drv.c
+++ b/drivers/staging/hv/blkvsc_drv.c
@@ -146,6 +146,8 @@ static int blkvsc_device_add(struct hv_device *device,

device_info = (struct storvsc_device_info *)additional_info;

+ device_info->ring_buffer_size = blkvsc_ringbuffer_size;
+
ret = storvsc_dev_add(device, additional_info);
if (ret != 0)
return ret;
@@ -818,14 +820,11 @@ static const struct block_device_operations block_ops = {
*/
static int blkvsc_drv_init(void)
{
- struct storvsc_driver *storvsc_drv = &blkvsc_drv;
struct hv_driver *drv = &blkvsc_drv.base;
int ret;

BUILD_BUG_ON(sizeof(sector_t) != 8);

- storvsc_drv->ring_buffer_size = blkvsc_ringbuffer_size;
-
memcpy(&drv->dev_type, &dev_type, sizeof(struct hv_guid));
drv->name = drv_name;
drv->driver.name = drv_name;
diff --git a/drivers/staging/hv/storvsc.c b/drivers/staging/hv/storvsc.c
index 41361f5..8d7a490 100644
--- a/drivers/staging/hv/storvsc.c
+++ b/drivers/staging/hv/storvsc.c
@@ -363,19 +363,17 @@ static void storvsc_on_channel_callback(void *context)
return;
}

-static int storvsc_connect_to_vsp(struct hv_device *device)
+static int storvsc_connect_to_vsp(struct hv_device *device, u32 ring_size)
{
struct vmstorage_channel_properties props;
- struct storvsc_driver *stor_driver;
int ret;

- stor_driver = drv_to_stordrv(device->device.driver);
memset(&props, 0, sizeof(struct vmstorage_channel_properties));

/* Open the channel */
ret = vmbus_open(device->channel,
- stor_driver->ring_buffer_size,
- stor_driver->ring_buffer_size,
+ ring_size,
+ ring_size,
(void *)&props,
sizeof(struct vmstorage_channel_properties),
storvsc_on_channel_callback, device);
@@ -413,7 +411,7 @@ int storvsc_dev_add(struct hv_device *device,

stor_device->port_number = device_info->port_number;
/* Send it back up */
- ret = storvsc_connect_to_vsp(device);
+ ret = storvsc_connect_to_vsp(device, device_info->ring_buffer_size);

device_info->path_id = stor_device->path_id;
device_info->target_id = stor_device->target_id;
diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
index 7d8b8f9..1fb0521 100644
--- a/drivers/staging/hv/storvsc_drv.c
+++ b/drivers/staging/hv/storvsc_drv.c
@@ -733,6 +733,7 @@ static int storvsc_probe(struct hv_device *device)
}

device_info.port_number = host->host_no;
+ device_info.ring_buffer_size = storvsc_ringbuffer_size;
/* Call to the vsc driver to add the device */
ret = storvsc_dev_add(device, (void *)&device_info);

--
1.7.4.1