[PATCH 1/6] Staging: hv: Unify hyper-v device abstractions
From: K. Y. Srinivasan
Date: Fri Feb 25 2011 - 20:57:01 EST
Hyper-V drivers have supported two device abstractions.
This patch implements a single device abstraction.
This simplifies the code and avoids duplication
of state.
Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
Signed-off-by: Hank Janssen <hjanssen@xxxxxxxxxxxxx>
---
drivers/staging/hv/blkvsc.c | 17 ++++---
drivers/staging/hv/blkvsc_drv.c | 14 +++---
drivers/staging/hv/channel_mgmt.c | 1 +
drivers/staging/hv/channel_mgmt.h | 2 +-
drivers/staging/hv/netvsc.c | 55 ++++++++++++-----------
drivers/staging/hv/netvsc.h | 2 +-
drivers/staging/hv/netvsc_api.h | 12 +++---
drivers/staging/hv/netvsc_drv.c | 28 +++++-------
drivers/staging/hv/rndis_filter.c | 19 ++++----
drivers/staging/hv/storvsc.c | 37 ++++++++--------
drivers/staging/hv/storvsc_api.h | 4 +-
drivers/staging/hv/storvsc_drv.c | 21 ++++-----
drivers/staging/hv/vmbus.h | 13 +++---
drivers/staging/hv/vmbus_api.h | 29 ++----------
drivers/staging/hv/vmbus_drv.c | 84 +++++++++++++++---------------------
drivers/staging/hv/vmbus_private.h | 12 +++---
16 files changed, 157 insertions(+), 193 deletions(-)
diff --git a/drivers/staging/hv/blkvsc.c b/drivers/staging/hv/blkvsc.c
index 7c8729b..ecface3 100644
--- a/drivers/staging/hv/blkvsc.c
+++ b/drivers/staging/hv/blkvsc.c
@@ -35,7 +35,8 @@ static const struct hv_guid g_blk_device_type = {
}
};
-static int blk_vsc_on_device_add(struct hv_device *device, void *additional_info)
+static int blk_vsc_on_device_add(struct vm_device *device,
+ void *additional_info)
{
struct storvsc_device_info *device_info;
int ret = 0;
@@ -51,13 +52,13 @@ static int blk_vsc_on_device_add(struct hv_device *device, void *additional_info
* id. For IDE devices, the device instance id is formatted as
* <bus id> * - <device id> - 8899 - 000000000000.
*/
- device_info->path_id = device->dev_instance.data[3] << 24 |
- device->dev_instance.data[2] << 16 |
- device->dev_instance.data[1] << 8 |
- device->dev_instance.data[0];
+ device_info->path_id = device->device_id.data[3] << 24 |
+ device->device_id.data[2] << 16 |
+ device->device_id.data[1] << 8 |
+ device->device_id.data[0];
- device_info->target_id = device->dev_instance.data[5] << 8 |
- device->dev_instance.data[4];
+ device_info->target_id = device->device_id.data[5] << 8 |
+ device->device_id.data[4];
return ret;
}
@@ -73,7 +74,7 @@ int blk_vsc_initialize(struct hv_driver *driver)
/* ASSERT(stor_driver->RingBufferSize >= (PAGE_SIZE << 1)); */
driver->name = g_blk_driver_name;
- memcpy(&driver->dev_type, &g_blk_device_type, sizeof(struct hv_guid));
+ memcpy(&driver->class_id, &g_blk_device_type, sizeof(struct hv_guid));
stor_driver->request_ext_size = sizeof(struct storvsc_request_extension);
diff --git a/drivers/staging/hv/blkvsc_drv.c b/drivers/staging/hv/blkvsc_drv.c
index 36a0adb..6d1a783 100644
--- a/drivers/staging/hv/blkvsc_drv.c
+++ b/drivers/staging/hv/blkvsc_drv.c
@@ -183,7 +183,7 @@ static int blkvsc_drv_init(int (*drv_init)(struct hv_driver *drv))
drv_init(&storvsc_drv_obj->base);
drv_ctx->driver.name = storvsc_drv_obj->base.name;
- memcpy(&drv_ctx->class_id, &storvsc_drv_obj->base.dev_type,
+ memcpy(&drv_ctx->class_id, &storvsc_drv_obj->base.class_id,
sizeof(struct hv_guid));
drv_ctx->probe = blkvsc_probe;
@@ -249,8 +249,7 @@ static int blkvsc_probe(struct device *device)
(struct blkvsc_driver_context *)driver_ctx;
struct storvsc_driver_object *storvsc_drv_obj =
&blkvsc_drv_ctx->drv_obj;
- struct vm_device *device_ctx = device_to_vm_device(device);
- struct hv_device *device_obj = &device_ctx->device_obj;
+ struct vm_device *device_obj = device_to_vm_device(device);
struct block_device_context *blkdev = NULL;
struct storvsc_device_info device_info;
@@ -282,7 +281,7 @@ static int blkvsc_probe(struct device *device)
/* ASSERT(sizeof(struct blkvsc_request_group) <= */
/* sizeof(struct blkvsc_request)); */
- blkdev->request_pool = kmem_cache_create(dev_name(&device_ctx->device),
+ blkdev->request_pool = kmem_cache_create(dev_name(&device_obj->device),
sizeof(struct blkvsc_request) +
storvsc_drv_obj->request_ext_size, 0,
SLAB_HWCACHE_ALIGN, NULL);
@@ -299,7 +298,7 @@ static int blkvsc_probe(struct device *device)
goto Cleanup;
}
- blkdev->device_ctx = device_ctx;
+ blkdev->device_ctx = device_obj;
/* this identified the device 0 or 1 */
blkdev->target = device_info.target_id;
/* this identified the ide ctrl 0 or 1 */
@@ -734,8 +733,7 @@ static int blkvsc_remove(struct device *device)
(struct blkvsc_driver_context *)driver_ctx;
struct storvsc_driver_object *storvsc_drv_obj =
&blkvsc_drv_ctx->drv_obj;
- struct vm_device *device_ctx = device_to_vm_device(device);
- struct hv_device *device_obj = &device_ctx->device_obj;
+ struct vm_device *device_obj = device_to_vm_device(device);
struct block_device_context *blkdev = dev_get_drvdata(device);
unsigned long flags;
int ret;
@@ -897,7 +895,7 @@ static int blkvsc_submit_request(struct blkvsc_request *blkvsc_req,
storvsc_req->sense_buffer = blkvsc_req->sense_buffer;
storvsc_req->sense_buffer_size = SCSI_SENSE_BUFFERSIZE;
- ret = storvsc_drv_obj->on_io_request(&blkdev->device_ctx->device_obj,
+ ret = storvsc_drv_obj->on_io_request(blkdev->device_ctx,
&blkvsc_req->request);
if (ret == 0)
blkdev->num_outstanding_reqs++;
diff --git a/drivers/staging/hv/channel_mgmt.c b/drivers/staging/hv/channel_mgmt.c
index 0781c0e..8d81288 100644
--- a/drivers/staging/hv/channel_mgmt.c
+++ b/drivers/staging/hv/channel_mgmt.c
@@ -28,6 +28,7 @@
#include <linux/completion.h>
#include "hv_api.h"
#include "logging.h"
+#include "vmbus.h"
#include "vmbus_private.h"
#include "utils.h"
diff --git a/drivers/staging/hv/channel_mgmt.h b/drivers/staging/hv/channel_mgmt.h
index 3368bf1..b3a9214 100644
--- a/drivers/staging/hv/channel_mgmt.h
+++ b/drivers/staging/hv/channel_mgmt.h
@@ -228,7 +228,7 @@ enum vmbus_channel_state {
struct vmbus_channel {
struct list_head listentry;
- struct hv_device *device_obj;
+ struct vm_device *device_obj;
struct timer_list poll_timer; /* SA-111 workaround */
struct work_struct work;
diff --git a/drivers/staging/hv/netvsc.c b/drivers/staging/hv/netvsc.c
index 20b1597..ff8e5be 100644
--- a/drivers/staging/hv/netvsc.c
+++ b/drivers/staging/hv/netvsc.c
@@ -26,6 +26,7 @@
#include <linux/io.h>
#include <linux/slab.h>
#include "hv_api.h"
+#include "vmbus.h"
#include "logging.h"
#include "netvsc.h"
#include "rndis_filter.h"
@@ -43,40 +44,40 @@ static const struct hv_guid netvsc_device_type = {
}
};
-static int netvsc_device_add(struct hv_device *device, void *additional_info);
+static int netvsc_device_add(struct vm_device *device, void *additional_info);
-static int netvsc_device_remove(struct hv_device *device);
+static int netvsc_device_remove(struct vm_device *device);
static void netvsc_cleanup(struct hv_driver *driver);
static void netvsc_channel_cb(void *context);
-static int netvsc_init_send_buf(struct hv_device *device);
+static int netvsc_init_send_buf(struct vm_device *device);
-static int netvsc_init_recv_buf(struct hv_device *device);
+static int netvsc_init_recv_buf(struct vm_device *device);
static int netvsc_destroy_send_buf(struct netvsc_device *net_device);
static int netvsc_destroy_recv_buf(struct netvsc_device *net_device);
-static int netvsc_connect_vsp(struct hv_device *device);
+static int netvsc_connect_vsp(struct vm_device *device);
-static void netvsc_send_completion(struct hv_device *device,
+static void netvsc_send_completion(struct vm_device *device,
struct vmpacket_descriptor *packet);
-static int netvsc_send(struct hv_device *device,
+static int netvsc_send(struct vm_device *device,
struct hv_netvsc_packet *packet);
-static void netvsc_receive(struct hv_device *device,
+static void netvsc_receive(struct vm_device *device,
struct vmpacket_descriptor *packet);
static void netvsc_receive_completion(void *context);
-static void netvsc_send_recv_completion(struct hv_device *device,
+static void netvsc_send_recv_completion(struct vm_device *device,
u64 transaction_id);
-static struct netvsc_device *alloc_net_device(struct hv_device *device)
+static struct netvsc_device *alloc_net_device(struct vm_device *device)
{
struct netvsc_device *net_device;
@@ -102,7 +103,7 @@ static void free_net_device(struct netvsc_device *device)
/* Get the net device object iff exists and its refcount > 1 */
-static struct netvsc_device *get_outbound_net_device(struct hv_device *device)
+static struct netvsc_device *get_outbound_net_device(struct vm_device *device)
{
struct netvsc_device *net_device;
@@ -116,7 +117,7 @@ static struct netvsc_device *get_outbound_net_device(struct hv_device *device)
}
/* Get the net device object iff exists and its refcount > 0 */
-static struct netvsc_device *get_inbound_net_device(struct hv_device *device)
+static struct netvsc_device *get_inbound_net_device(struct vm_device *device)
{
struct netvsc_device *net_device;
@@ -129,7 +130,7 @@ static struct netvsc_device *get_inbound_net_device(struct hv_device *device)
return net_device;
}
-static void put_net_device(struct hv_device *device)
+static void put_net_device(struct vm_device *device)
{
struct netvsc_device *net_device;
@@ -139,7 +140,7 @@ static void put_net_device(struct hv_device *device)
}
static struct netvsc_device *release_outbound_net_device(
- struct hv_device *device)
+ struct vm_device *device)
{
struct netvsc_device *net_device;
@@ -155,7 +156,7 @@ static struct netvsc_device *release_outbound_net_device(
}
static struct netvsc_device *release_inbound_net_device(
- struct hv_device *device)
+ struct vm_device *device)
{
struct netvsc_device *net_device;
@@ -186,7 +187,7 @@ int netvsc_initialize(struct hv_driver *drv)
sizeof(struct vmtransfer_page_packet_header));
drv->name = driver_name;
- memcpy(&drv->dev_type, &netvsc_device_type, sizeof(struct hv_guid));
+ memcpy(&drv->class_id, &netvsc_device_type, sizeof(struct hv_guid));
/* Setup the dispatch table */
driver->base.dev_add = netvsc_device_add;
@@ -199,7 +200,7 @@ int netvsc_initialize(struct hv_driver *drv)
return 0;
}
-static int netvsc_init_recv_buf(struct hv_device *device)
+static int netvsc_init_recv_buf(struct vm_device *device)
{
int ret = 0;
struct netvsc_device *net_device;
@@ -329,7 +330,7 @@ exit:
return ret;
}
-static int netvsc_init_send_buf(struct hv_device *device)
+static int netvsc_init_send_buf(struct vm_device *device)
{
int ret = 0;
struct netvsc_device *net_device;
@@ -571,7 +572,7 @@ static int netvsc_destroy_send_buf(struct netvsc_device *net_device)
}
-static int netvsc_connect_vsp(struct hv_device *device)
+static int netvsc_connect_vsp(struct vm_device *device)
{
int ret;
struct netvsc_device *net_device;
@@ -687,7 +688,7 @@ static void NetVscDisconnectFromVsp(struct netvsc_device *net_device)
* netvsc_device_add - Callback when the device belonging to this
* driver is added
*/
-static int netvsc_device_add(struct hv_device *device, void *additional_info)
+static int netvsc_device_add(struct vm_device *device, void *additional_info)
{
int ret = 0;
int i;
@@ -780,7 +781,7 @@ cleanup:
/*
* netvsc_device_remove - Callback when the root bus device is removed
*/
-static int netvsc_device_remove(struct hv_device *device)
+static int netvsc_device_remove(struct vm_device *device)
{
struct netvsc_device *net_device;
struct hv_netvsc_packet *netvsc_packet, *pos;
@@ -836,7 +837,7 @@ static void netvsc_cleanup(struct hv_driver *drv)
{
}
-static void netvsc_send_completion(struct hv_device *device,
+static void netvsc_send_completion(struct vm_device *device,
struct vmpacket_descriptor *packet)
{
struct netvsc_device *net_device;
@@ -885,7 +886,7 @@ static void netvsc_send_completion(struct hv_device *device,
put_net_device(device);
}
-static int netvsc_send(struct hv_device *device,
+static int netvsc_send(struct vm_device *device,
struct hv_netvsc_packet *packet)
{
struct netvsc_device *net_device;
@@ -939,7 +940,7 @@ static int netvsc_send(struct hv_device *device,
return ret;
}
-static void netvsc_receive(struct hv_device *device,
+static void netvsc_receive(struct vm_device *device,
struct vmpacket_descriptor *packet)
{
struct netvsc_device *net_device;
@@ -1136,7 +1137,7 @@ static void netvsc_receive(struct hv_device *device,
put_net_device(device);
}
-static void netvsc_send_recv_completion(struct hv_device *device,
+static void netvsc_send_recv_completion(struct vm_device *device,
u64 transaction_id)
{
struct nvsp_message recvcompMessage;
@@ -1185,7 +1186,7 @@ retry_send_cmplt:
static void netvsc_receive_completion(void *context)
{
struct hv_netvsc_packet *packet = context;
- struct hv_device *device = (struct hv_device *)packet->device;
+ struct vm_device *device = (struct vm_device *)packet->device;
struct netvsc_device *net_device;
u64 transaction_id = 0;
bool fsend_receive_comp = false;
@@ -1234,7 +1235,7 @@ static void netvsc_receive_completion(void *context)
static void netvsc_channel_cb(void *context)
{
int ret;
- struct hv_device *device = context;
+ struct vm_device *device = context;
struct netvsc_device *net_device;
u32 bytes_recvd;
u64 request_id;
diff --git a/drivers/staging/hv/netvsc.h b/drivers/staging/hv/netvsc.h
index 45d24b9..b2709eb 100644
--- a/drivers/staging/hv/netvsc.h
+++ b/drivers/staging/hv/netvsc.h
@@ -293,7 +293,7 @@ struct nvsp_message {
/* Per netvsc channel-specific */
struct netvsc_device {
- struct hv_device *dev;
+ struct vm_device *dev;
atomic_t refcnt;
atomic_t num_outstanding_sends;
diff --git a/drivers/staging/hv/netvsc_api.h b/drivers/staging/hv/netvsc_api.h
index b4bed36..a9cfeff 100644
--- a/drivers/staging/hv/netvsc_api.h
+++ b/drivers/staging/hv/netvsc_api.h
@@ -49,7 +49,7 @@ struct hv_netvsc_packet {
/* Bookkeeping stuff */
struct list_head list_ent;
- struct hv_device *device;
+ struct vm_device *device;
bool is_data_pkt;
/*
@@ -93,12 +93,12 @@ struct netvsc_driver {
* This is set by the caller to allow us to callback when we
* receive a packet from the "wire"
*/
- int (*recv_cb)(struct hv_device *dev,
+ int (*recv_cb)(struct vm_device *dev,
struct hv_netvsc_packet *packet);
- void (*link_status_change)(struct hv_device *dev, u32 status);
+ void (*link_status_change)(struct vm_device *dev, u32 status);
/* Specific to this driver */
- int (*send)(struct hv_device *dev, struct hv_netvsc_packet *packet);
+ int (*send)(struct vm_device *dev, struct hv_netvsc_packet *packet);
void *ctx;
};
@@ -110,7 +110,7 @@ struct netvsc_device_info {
/* Interface */
int netvsc_initialize(struct hv_driver *drv);
-int rndis_filter_open(struct hv_device *dev);
-int rndis_filter_close(struct hv_device *dev);
+int rndis_filter_open(struct vm_device *dev);
+int rndis_filter_close(struct vm_device *dev);
#endif /* _NETVSC_API_H_ */
diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c
index 03f9740..055986f 100644
--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/staging/hv/netvsc_drv.c
@@ -76,7 +76,7 @@ static void netvsc_set_multicast_list(struct net_device *net)
static int netvsc_open(struct net_device *net)
{
struct net_device_context *net_device_ctx = netdev_priv(net);
- struct hv_device *device_obj = &net_device_ctx->device_ctx->device_obj;
+ struct vm_device *device_obj = net_device_ctx->device_ctx;
int ret = 0;
if (netif_carrier_ok(net)) {
@@ -99,7 +99,7 @@ static int netvsc_open(struct net_device *net)
static int netvsc_close(struct net_device *net)
{
struct net_device_context *net_device_ctx = netdev_priv(net);
- struct hv_device *device_obj = &net_device_ctx->device_ctx->device_obj;
+ struct vm_device *device_obj = net_device_ctx->device_ctx;
int ret;
netif_stop_queue(net);
@@ -198,7 +198,7 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
packet->completion.send.send_completion_ctx = packet;
packet->completion.send.send_completion_tid = (unsigned long)skb;
- ret = net_drv_obj->send(&net_device_ctx->device_ctx->device_obj,
+ ret = net_drv_obj->send(net_device_ctx->device_ctx,
packet);
if (ret == 0) {
net->stats.tx_bytes += skb->len;
@@ -223,11 +223,10 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
/*
* netvsc_linkstatus_callback - Link up/down notification
*/
-static void netvsc_linkstatus_callback(struct hv_device *device_obj,
+static void netvsc_linkstatus_callback(struct vm_device *device_obj,
unsigned int status)
{
- struct vm_device *device_ctx = to_vm_device(device_obj);
- struct net_device *net = dev_get_drvdata(&device_ctx->device);
+ struct net_device *net = dev_get_drvdata(&device_obj->device);
if (!net) {
DPRINT_ERR(NETVSC_DRV, "got link status but net device "
@@ -249,11 +248,10 @@ static void netvsc_linkstatus_callback(struct hv_device *device_obj,
* netvsc_recv_callback - Callback when we receive a packet from the
* "wire" on the specified device.
*/
-static int netvsc_recv_callback(struct hv_device *device_obj,
+static int netvsc_recv_callback(struct vm_device *device_obj,
struct hv_netvsc_packet *packet)
{
- struct vm_device *device_ctx = to_vm_device(device_obj);
- struct net_device *net = dev_get_drvdata(&device_ctx->device);
+ struct net_device *net = dev_get_drvdata(&device_obj->device);
struct sk_buff *skb;
void *data;
int i;
@@ -345,8 +343,7 @@ static int netvsc_probe(struct device *device)
struct netvsc_driver_context *net_drv_ctx =
(struct netvsc_driver_context *)driver_ctx;
struct netvsc_driver *net_drv_obj = &net_drv_ctx->drv_obj;
- struct vm_device *device_ctx = device_to_vm_device(device);
- struct hv_device *device_obj = &device_ctx->device_obj;
+ struct vm_device *device_obj = device_to_vm_device(device);
struct net_device *net = NULL;
struct net_device_context *net_device_ctx;
struct netvsc_device_info device_info;
@@ -363,7 +360,7 @@ static int netvsc_probe(struct device *device)
netif_carrier_off(net);
net_device_ctx = netdev_priv(net);
- net_device_ctx->device_ctx = device_ctx;
+ net_device_ctx->device_ctx = device_obj;
net_device_ctx->avail = ring_size;
dev_set_drvdata(device, net);
@@ -417,9 +414,8 @@ static int netvsc_remove(struct device *device)
struct netvsc_driver_context *net_drv_ctx =
(struct netvsc_driver_context *)driver_ctx;
struct netvsc_driver *net_drv_obj = &net_drv_ctx->drv_obj;
- struct vm_device *device_ctx = device_to_vm_device(device);
- struct net_device *net = dev_get_drvdata(&device_ctx->device);
- struct hv_device *device_obj = &device_ctx->device_obj;
+ struct vm_device *device_obj = device_to_vm_device(device);
+ struct net_device *net = dev_get_drvdata(&device_obj->device);
int ret;
if (net == NULL) {
@@ -508,7 +504,7 @@ static int netvsc_drv_init(int (*drv_init)(struct hv_driver *drv))
drv_init(&net_drv_obj->base);
drv_ctx->driver.name = net_drv_obj->base.name;
- memcpy(&drv_ctx->class_id, &net_drv_obj->base.dev_type,
+ memcpy(&drv_ctx->class_id, &net_drv_obj->base.class_id,
sizeof(struct hv_guid));
drv_ctx->probe = netvsc_probe;
diff --git a/drivers/staging/hv/rndis_filter.c b/drivers/staging/hv/rndis_filter.c
index e7189cd..e0b1b44 100644
--- a/drivers/staging/hv/rndis_filter.c
+++ b/drivers/staging/hv/rndis_filter.c
@@ -28,6 +28,7 @@
#include "logging.h"
#include "hv_api.h"
+#include "vmbus.h"
#include "netvsc_api.h"
#include "rndis_filter.h"
@@ -84,14 +85,14 @@ struct rndis_filter_packet {
};
-static int rndis_filte_device_add(struct hv_device *dev,
+static int rndis_filte_device_add(struct vm_device *dev,
void *additional_info);
-static int rndis_filter_device_remove(struct hv_device *dev);
+static int rndis_filter_device_remove(struct vm_device *dev);
static void rndis_filter_cleanup(struct hv_driver *drv);
-static int rndis_filter_send(struct hv_device *dev,
+static int rndis_filter_send(struct vm_device *dev,
struct hv_netvsc_packet *pkt);
static void rndis_filter_send_completion(void *ctx);
@@ -375,7 +376,7 @@ static void rndis_filter_receive_data(struct rndis_device *dev,
pkt);
}
-static int rndis_filter_receive(struct hv_device *dev,
+static int rndis_filter_receive(struct vm_device *dev,
struct hv_netvsc_packet *pkt)
{
struct netvsc_device *net_dev = dev->ext;
@@ -753,7 +754,7 @@ static int rndis_filter_close_device(struct rndis_device *dev)
return ret;
}
-static int rndis_filte_device_add(struct hv_device *dev,
+static int rndis_filte_device_add(struct vm_device *dev,
void *additional_info)
{
int ret;
@@ -816,7 +817,7 @@ static int rndis_filte_device_add(struct hv_device *dev,
return ret;
}
-static int rndis_filter_device_remove(struct hv_device *dev)
+static int rndis_filter_device_remove(struct vm_device *dev)
{
struct netvsc_device *net_dev = dev->ext;
struct rndis_device *rndis_dev = net_dev->extension;
@@ -837,7 +838,7 @@ static void rndis_filter_cleanup(struct hv_driver *drv)
{
}
-int rndis_filter_open(struct hv_device *dev)
+int rndis_filter_open(struct vm_device *dev)
{
struct netvsc_device *netDevice = dev->ext;
@@ -847,7 +848,7 @@ int rndis_filter_open(struct hv_device *dev)
return rndis_filter_open_device(netDevice->extension);
}
-int rndis_filter_close(struct hv_device *dev)
+int rndis_filter_close(struct vm_device *dev)
{
struct netvsc_device *netDevice = dev->ext;
@@ -857,7 +858,7 @@ int rndis_filter_close(struct hv_device *dev)
return rndis_filter_close_device(netDevice->extension);
}
-static int rndis_filter_send(struct hv_device *dev,
+static int rndis_filter_send(struct vm_device *dev,
struct hv_netvsc_packet *pkt)
{
int ret;
diff --git a/drivers/staging/hv/storvsc.c b/drivers/staging/hv/storvsc.c
index e2ad729..7b75ab5 100644
--- a/drivers/staging/hv/storvsc.c
+++ b/drivers/staging/hv/storvsc.c
@@ -26,6 +26,7 @@
#include <linux/mm.h>
#include <linux/delay.h>
#include "hv_api.h"
+#include "vmbus.h"
#include "logging.h"
#include "storvsc_api.h"
#include "vmbus_packet_format.h"
@@ -37,7 +38,7 @@ struct storvsc_request_extension {
/* LIST_ENTRY ListEntry; */
struct hv_storvsc_request *request;
- struct hv_device *device;
+ struct vm_device *device;
/* Synchronize the request/response if needed */
int wait_condition;
@@ -48,7 +49,7 @@ struct storvsc_request_extension {
/* A storvsc device is a device object that contains a vmbus channel */
struct storvsc_device {
- struct hv_device *device;
+ struct vm_device *device;
/* 0 indicates the device is being destroyed */
atomic_t ref_count;
@@ -84,7 +85,7 @@ static const struct hv_guid gStorVscDeviceType = {
};
-static inline struct storvsc_device *alloc_stor_device(struct hv_device *device)
+static inline struct storvsc_device *alloc_stor_device(struct vm_device *device)
{
struct storvsc_device *stor_device;
@@ -109,7 +110,7 @@ static inline void free_stor_device(struct storvsc_device *device)
}
/* Get the stordevice object iff exists and its refcount > 1 */
-static inline struct storvsc_device *get_stor_device(struct hv_device *device)
+static inline struct storvsc_device *get_stor_device(struct vm_device *device)
{
struct storvsc_device *stor_device;
@@ -124,7 +125,7 @@ static inline struct storvsc_device *get_stor_device(struct hv_device *device)
/* Get the stordevice object iff exists and its refcount > 0 */
static inline struct storvsc_device *must_get_stor_device(
- struct hv_device *device)
+ struct vm_device *device)
{
struct storvsc_device *stor_device;
@@ -137,7 +138,7 @@ static inline struct storvsc_device *must_get_stor_device(
return stor_device;
}
-static inline void put_stor_device(struct hv_device *device)
+static inline void put_stor_device(struct vm_device *device)
{
struct storvsc_device *stor_device;
@@ -150,7 +151,7 @@ static inline void put_stor_device(struct hv_device *device)
/* Drop ref count to 1 to effectively disable get_stor_device() */
static inline struct storvsc_device *release_stor_device(
- struct hv_device *device)
+ struct vm_device *device)
{
struct storvsc_device *stor_device;
@@ -166,7 +167,7 @@ static inline struct storvsc_device *release_stor_device(
/* Drop ref count to 0. No one can use stor_device object. */
static inline struct storvsc_device *final_release_stor_device(
- struct hv_device *device)
+ struct vm_device *device)
{
struct storvsc_device *stor_device;
@@ -181,7 +182,7 @@ static inline struct storvsc_device *final_release_stor_device(
return stor_device;
}
-static int stor_vsc_channel_init(struct hv_device *device)
+static int stor_vsc_channel_init(struct vm_device *device)
{
struct storvsc_device *stor_device;
struct storvsc_request_extension *request;
@@ -362,7 +363,7 @@ cleanup:
return ret;
}
-static void stor_vsc_on_io_completion(struct hv_device *device,
+static void stor_vsc_on_io_completion(struct vm_device *device,
struct vstor_packet *vstor_packet,
struct storvsc_request_extension *request_ext)
{
@@ -426,7 +427,7 @@ static void stor_vsc_on_io_completion(struct hv_device *device,
put_stor_device(device);
}
-static void stor_vsc_on_receive(struct hv_device *device,
+static void stor_vsc_on_receive(struct vm_device *device,
struct vstor_packet *vstor_packet,
struct storvsc_request_extension *request_ext)
{
@@ -449,7 +450,7 @@ static void stor_vsc_on_receive(struct hv_device *device,
static void stor_vsc_on_channel_callback(void *context)
{
- struct hv_device *device = (struct hv_device *)context;
+ struct vm_device *device = (struct vm_device *)context;
struct storvsc_device *stor_device;
u32 bytes_recvd;
u64 request_id;
@@ -509,7 +510,7 @@ static void stor_vsc_on_channel_callback(void *context)
return;
}
-static int stor_vsc_connect_to_vsp(struct hv_device *device)
+static int stor_vsc_connect_to_vsp(struct vm_device *device)
{
struct vmstorage_channel_properties props;
struct storvsc_driver_object *stor_driver;
@@ -543,7 +544,7 @@ static int stor_vsc_connect_to_vsp(struct hv_device *device)
* stor_vsc_on_device_add - Callback when the device belonging to this driver
* is added
*/
-static int stor_vsc_on_device_add(struct hv_device *device,
+static int stor_vsc_on_device_add(struct vm_device *device,
void *additional_info)
{
struct storvsc_device *stor_device;
@@ -592,7 +593,7 @@ cleanup:
/*
* stor_vsc_on_device_remove - Callback when the our device is being removed
*/
-static int stor_vsc_on_device_remove(struct hv_device *device)
+static int stor_vsc_on_device_remove(struct vm_device *device)
{
struct storvsc_device *stor_device;
@@ -626,7 +627,7 @@ static int stor_vsc_on_device_remove(struct hv_device *device)
return 0;
}
-int stor_vsc_on_host_reset(struct hv_device *device)
+int stor_vsc_on_host_reset(struct vm_device *device)
{
struct storvsc_device *stor_device;
struct storvsc_request_extension *request;
@@ -685,7 +686,7 @@ cleanup:
/*
* stor_vsc_on_io_request - Callback to initiate an I/O request
*/
-static int stor_vsc_on_io_request(struct hv_device *device,
+static int stor_vsc_on_io_request(struct vm_device *device,
struct hv_storvsc_request *request)
{
struct storvsc_device *stor_device;
@@ -804,7 +805,7 @@ int stor_vsc_initialize(struct hv_driver *driver)
/* ASSERT(stor_driver->RingBufferSize >= (PAGE_SIZE << 1)); */
driver->name = g_driver_name;
- memcpy(&driver->dev_type, &gStorVscDeviceType,
+ memcpy(&driver->class_id, &gStorVscDeviceType,
sizeof(struct hv_guid));
stor_driver->request_ext_size =
diff --git a/drivers/staging/hv/storvsc_api.h b/drivers/staging/hv/storvsc_api.h
index fbf5755..8bed6f5 100644
--- a/drivers/staging/hv/storvsc_api.h
+++ b/drivers/staging/hv/storvsc_api.h
@@ -92,7 +92,7 @@ struct storvsc_driver_object {
u32 max_outstanding_req_per_channel;
/* Specific to this driver */
- int (*on_io_request)(struct hv_device *device,
+ int (*on_io_request)(struct vm_device *device,
struct hv_storvsc_request *request);
};
@@ -104,7 +104,7 @@ struct storvsc_device_info {
/* Interface */
int stor_vsc_initialize(struct hv_driver *driver);
-int stor_vsc_on_host_reset(struct hv_device *device);
+int stor_vsc_on_host_reset(struct vm_device *device);
int blk_vsc_initialize(struct hv_driver *driver);
#endif /* _STORVSC_API_H_ */
diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
index a8427ff..216d8ff 100644
--- a/drivers/staging/hv/storvsc_drv.c
+++ b/drivers/staging/hv/storvsc_drv.c
@@ -32,6 +32,7 @@
#include <scsi/scsi_devinfo.h>
#include <scsi/scsi_dbg.h>
#include "hv_api.h"
+#include "vmbus.h"
#include "logging.h"
#include "version_info.h"
#include "vmbus.h"
@@ -161,7 +162,7 @@ static int storvsc_drv_init(int (*drv_init)(struct hv_driver *drv))
}
drv_ctx->driver.name = storvsc_drv_obj->base.name;
- memcpy(&drv_ctx->class_id, &storvsc_drv_obj->base.dev_type,
+ memcpy(&drv_ctx->class_id, &storvsc_drv_obj->base.class_id,
sizeof(struct hv_guid));
drv_ctx->probe = storvsc_probe;
@@ -225,8 +226,7 @@ static int storvsc_probe(struct device *device)
(struct storvsc_driver_context *)driver_ctx;
struct storvsc_driver_object *storvsc_drv_obj =
&storvsc_drv_ctx->drv_obj;
- struct vm_device *device_ctx = device_to_vm_device(device);
- struct hv_device *device_obj = &device_ctx->device_obj;
+ struct vm_device *device_obj = device_to_vm_device(device);
struct Scsi_Host *host;
struct host_device_context *host_device_ctx;
struct storvsc_device_info device_info;
@@ -247,10 +247,10 @@ static int storvsc_probe(struct device *device)
memset(host_device_ctx, 0, sizeof(struct host_device_context));
host_device_ctx->port = host->host_no;
- host_device_ctx->device_ctx = device_ctx;
+ host_device_ctx->device_ctx = device_obj;
host_device_ctx->request_pool =
- kmem_cache_create(dev_name(&device_ctx->device),
+ kmem_cache_create(dev_name(&device_obj->device),
sizeof(struct storvsc_cmd_request) +
storvsc_drv_obj->request_ext_size, 0,
SLAB_HWCACHE_ALIGN, NULL);
@@ -310,8 +310,7 @@ static int storvsc_remove(struct device *device)
(struct storvsc_driver_context *)driver_ctx;
struct storvsc_driver_object *storvsc_drv_obj =
&storvsc_drv_ctx->drv_obj;
- struct vm_device *device_ctx = device_to_vm_device(device);
- struct hv_device *device_obj = &device_ctx->device_obj;
+ struct vm_device *device_obj = device_to_vm_device(device);
struct Scsi_Host *host = dev_get_drvdata(device);
struct host_device_context *host_device_ctx =
(struct host_device_context *)host->hostdata;
@@ -752,7 +751,7 @@ static int storvsc_queuecommand_lck(struct scsi_cmnd *scmnd,
retry_request:
/* Invokes the vsc to start an IO */
- ret = storvsc_drv_obj->on_io_request(&device_ctx->device_obj,
+ ret = storvsc_drv_obj->on_io_request(device_ctx,
&cmd_request->request);
if (ret == -1) {
/* no more space */
@@ -842,15 +841,15 @@ static int storvsc_host_reset_handler(struct scsi_cmnd *scmnd)
struct vm_device *device_ctx = host_device_ctx->device_ctx;
DPRINT_INFO(STORVSC_DRV, "sdev (%p) dev obj (%p) - host resetting...",
- scmnd->device, &device_ctx->device_obj);
+ scmnd->device, device_ctx);
/* Invokes the vsc to reset the host/bus */
- ret = stor_vsc_on_host_reset(&device_ctx->device_obj);
+ ret = stor_vsc_on_host_reset(device_ctx);
if (ret != 0)
return ret;
DPRINT_INFO(STORVSC_DRV, "sdev (%p) dev obj (%p) - host reseted",
- scmnd->device, &device_ctx->device_obj);
+ scmnd->device, device_ctx);
return ret;
}
diff --git a/drivers/staging/hv/vmbus.h b/drivers/staging/hv/vmbus.h
index 42f2adb..e56e61a 100644
--- a/drivers/staging/hv/vmbus.h
+++ b/drivers/staging/hv/vmbus.h
@@ -44,18 +44,17 @@ struct driver_context {
};
struct vm_device {
+ char name[64];
struct work_struct probe_failed_work_item;
- struct hv_guid class_id;
- struct hv_guid device_id;
+ struct hv_guid class_id; /* device type id */
+ struct hv_guid device_id; /* device instance id */
+ struct hv_driver *drv;
int probe_error;
- struct hv_device device_obj;
+ struct vmbus_channel *channel; /* associated channel to host*/
+ void *ext;
struct device device;
};
-static inline struct vm_device *to_vm_device(struct hv_device *d)
-{
- return container_of(d, struct vm_device, device_obj);
-}
static inline struct vm_device *device_to_vm_device(struct device *d)
{
diff --git a/drivers/staging/hv/vmbus_api.h b/drivers/staging/hv/vmbus_api.h
index 635ce22..bf84fb0 100644
--- a/drivers/staging/hv/vmbus_api.h
+++ b/drivers/staging/hv/vmbus_api.h
@@ -56,7 +56,7 @@ struct hv_multipage_buffer {
#pragma pack(pop)
struct hv_driver;
-struct hv_device;
+struct vm_device;
struct hv_dev_port_info {
u32 int_mask;
@@ -66,7 +66,7 @@ struct hv_dev_port_info {
u32 bytes_avail_towrite;
};
-struct hv_device_info {
+struct vm_device_info {
u32 chn_id;
u32 chn_state;
struct hv_guid chn_type;
@@ -89,30 +89,11 @@ struct hv_driver {
const char *name;
/* the device type supported by this driver */
- struct hv_guid dev_type;
+ struct hv_guid class_id;
- int (*dev_add)(struct hv_device *device, void *data);
- int (*dev_rm)(struct hv_device *device);
+ int (*dev_add)(struct vm_device *device, void *data);
+ int (*dev_rm)(struct vm_device *device);
void (*cleanup)(struct hv_driver *driver);
};
-/* Base device object */
-struct hv_device {
- /* the driver for this device */
- struct hv_driver *drv;
-
- char name[64];
-
- /* the device type id of this device */
- struct hv_guid dev_type;
-
- /* the device instance id of this device */
- struct hv_guid dev_instance;
-
- struct vmbus_channel *channel;
-
- /* Device extension; */
- void *ext;
-};
-
#endif /* _VMBUS_API_H_ */
diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c
index 459c707..531b68d 100644
--- a/drivers/staging/hv/vmbus_drv.c
+++ b/drivers/staging/hv/vmbus_drv.c
@@ -145,12 +145,12 @@ static const struct hv_guid device_id = {
}
};
-static struct hv_device *vmbus_device; /* vmbus root device */
+static struct vm_device *vmbus_device; /* vmbus root device */
/*
* vmbus_child_dev_add - Registers the child device with the vmbus
*/
-int vmbus_child_dev_add(struct hv_device *child_dev)
+int vmbus_child_dev_add(struct vm_device *child_dev)
{
return vmbus_child_device_register(vmbus_device, child_dev);
}
@@ -158,15 +158,15 @@ int vmbus_child_dev_add(struct hv_device *child_dev)
/*
* vmbus_dev_add - Callback when the root bus device is added
*/
-static int vmbus_dev_add(struct hv_device *dev, void *info)
+static int vmbus_dev_add(struct vm_device *dev, void *info)
{
u32 *irqvector = info;
int ret;
vmbus_device = dev;
- memcpy(&vmbus_device->dev_type, &device_type, sizeof(struct hv_guid));
- memcpy(&vmbus_device->dev_instance, &device_id,
+ memcpy(&vmbus_device->class_id, &device_type, sizeof(struct hv_guid));
+ memcpy(&vmbus_device->device_id, &device_id,
sizeof(struct hv_guid));
/* strcpy(dev->name, "vmbus"); */
@@ -183,7 +183,7 @@ static int vmbus_dev_add(struct hv_device *dev, void *info)
/*
* vmbus_dev_rm - Callback when the root bus device is removed
*/
-static int vmbus_dev_rm(struct hv_device *dev)
+static int vmbus_dev_rm(struct vm_device *dev)
{
int ret = 0;
@@ -299,8 +299,8 @@ static int vmbus_on_isr(struct hv_driver *drv)
return ret;
}
-static void get_channel_info(struct hv_device *device,
- struct hv_device_info *info)
+static void get_channel_info(struct vm_device *device,
+ struct vm_device_info *info)
{
struct vmbus_channel_debug_info debug_info;
@@ -355,11 +355,11 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
char *buf)
{
struct vm_device *device_ctx = device_to_vm_device(dev);
- struct hv_device_info device_info;
+ struct vm_device_info device_info;
- memset(&device_info, 0, sizeof(struct hv_device_info));
+ memset(&device_info, 0, sizeof(struct vm_device_info));
- get_channel_info(&device_ctx->device_obj, &device_info);
+ get_channel_info(device_ctx, &device_info);
if (!strcmp(dev_attr->attr.name, "class_id")) {
return sprintf(buf, "{%02x%02x%02x%02x-%02x%02x-%02x%02x-"
@@ -480,7 +480,7 @@ static int vmbus_bus_init(void)
sizeof(struct vmbus_channel_packet_multipage_buffer));
driver->name = driver_name;
- memcpy(&driver->dev_type, &device_type, sizeof(struct hv_guid));
+ memcpy(&driver->class_id, &device_type, sizeof(struct hv_guid));
/* Setup dispatch table */
driver->dev_add = vmbus_dev_add;
@@ -537,7 +537,7 @@ static int vmbus_bus_init(void)
/* Call to bus driver to add the root device */
memset(dev_ctx, 0, sizeof(struct vm_device));
- ret = driver->dev_add(&dev_ctx->device_obj, &vector);
+ ret = driver->dev_add(dev_ctx, &vector);
if (ret != 0) {
DPRINT_ERR(VMBUS_DRV,
"ERROR - Unable to add vmbus root device");
@@ -551,10 +551,6 @@ static int vmbus_bus_init(void)
}
/* strcpy(dev_ctx->device.bus_id, dev_ctx->device_obj.name); */
dev_set_name(&dev_ctx->device, "vmbus_0_0");
- memcpy(&dev_ctx->class_id, &dev_ctx->device_obj.dev_type,
- sizeof(struct hv_guid));
- memcpy(&dev_ctx->device_id, &dev_ctx->device_obj.dev_instance,
- sizeof(struct hv_guid));
/* No need to bind a driver to the root device. */
dev_ctx->device.parent = NULL;
@@ -598,7 +594,7 @@ static void vmbus_bus_exit(void)
/* Remove the root device */
if (driver->dev_rm)
- driver->dev_rm(&dev_ctx->device_obj);
+ driver->dev_rm(dev_ctx);
if (driver->cleanup)
driver->cleanup(driver);
@@ -671,12 +667,11 @@ EXPORT_SYMBOL(vmbus_child_driver_unregister);
* vmbus_child_device_create - Creates and registers a new child device
* on the vmbus.
*/
-struct hv_device *vmbus_child_device_create(struct hv_guid *type,
+struct vm_device *vmbus_child_device_create(struct hv_guid *type,
struct hv_guid *instance,
struct vmbus_channel *channel)
{
struct vm_device *child_device_ctx;
- struct hv_device *child_device_obj;
/* Allocate the new child device */
child_device_ctx = kzalloc(sizeof(struct vm_device), GFP_KERNEL);
@@ -705,58 +700,50 @@ struct hv_device *vmbus_child_device_create(struct hv_guid *type,
instance->data[12], instance->data[13],
instance->data[14], instance->data[15]);
- child_device_obj = &child_device_ctx->device_obj;
- child_device_obj->channel = channel;
- memcpy(&child_device_obj->dev_type, type, sizeof(struct hv_guid));
- memcpy(&child_device_obj->dev_instance, instance,
- sizeof(struct hv_guid));
+ child_device_ctx->channel = channel;
memcpy(&child_device_ctx->class_id, type, sizeof(struct hv_guid));
memcpy(&child_device_ctx->device_id, instance, sizeof(struct hv_guid));
- return child_device_obj;
+ return child_device_ctx;
}
/*
* vmbus_child_device_register - Register the child device on the specified bus
*/
-int vmbus_child_device_register(struct hv_device *root_device_obj,
- struct hv_device *child_device_obj)
+int vmbus_child_device_register(struct vm_device *root_device_obj,
+ struct vm_device *child_device_obj)
{
int ret = 0;
- struct vm_device *root_device_ctx =
- to_vm_device(root_device_obj);
- struct vm_device *child_device_ctx =
- to_vm_device(child_device_obj);
static atomic_t device_num = ATOMIC_INIT(0);
DPRINT_DBG(VMBUS_DRV, "child device (%p) registering",
- child_device_ctx);
+ child_device_obj);
/* Set the device name. Otherwise, device_register() will fail. */
- dev_set_name(&child_device_ctx->device, "vmbus_0_%d",
+ dev_set_name(&child_device_obj->device, "vmbus_0_%d",
atomic_inc_return(&device_num));
/* The new device belongs to this bus */
- child_device_ctx->device.bus = &vmbus_drv.bus; /* device->dev.bus; */
- child_device_ctx->device.parent = &root_device_ctx->device;
- child_device_ctx->device.release = vmbus_device_release;
+ child_device_obj->device.bus = &vmbus_drv.bus; /* device->dev.bus; */
+ child_device_obj->device.parent = &root_device_obj->device;
+ child_device_obj->device.release = vmbus_device_release;
/*
* Register with the LDM. This will kick off the driver/device
* binding...which will eventually call vmbus_match() and vmbus_probe()
*/
- ret = device_register(&child_device_ctx->device);
+ ret = device_register(&child_device_obj->device);
/* vmbus_probe() error does not get propergate to device_register(). */
- ret = child_device_ctx->probe_error;
+ ret = child_device_obj->probe_error;
if (ret)
DPRINT_ERR(VMBUS_DRV, "unable to register child device (%p)",
- &child_device_ctx->device);
+ &child_device_obj->device);
else
DPRINT_INFO(VMBUS_DRV, "child device (%p) registered",
- &child_device_ctx->device);
+ &child_device_obj->device);
return ret;
}
@@ -765,21 +752,20 @@ int vmbus_child_device_register(struct hv_device *root_device_obj,
* vmbus_child_device_unregister - Remove the specified child device
* from the vmbus.
*/
-void vmbus_child_device_unregister(struct hv_device *device_obj)
+void vmbus_child_device_unregister(struct vm_device *device_obj)
{
- struct vm_device *device_ctx = to_vm_device(device_obj);
DPRINT_INFO(VMBUS_DRV, "unregistering child device (%p)",
- &device_ctx->device);
+ &device_obj->device);
/*
* Kick off the process of unregistering the device.
* This will call vmbus_remove() and eventually vmbus_device_release()
*/
- device_unregister(&device_ctx->device);
+ device_unregister(&device_obj->device);
DPRINT_INFO(VMBUS_DRV, "child device (%p) unregistered",
- &device_ctx->device);
+ &device_obj->device);
}
/*
@@ -876,11 +862,11 @@ static int vmbus_match(struct device *device, struct device_driver *driver)
struct vmbus_driver_context *vmbus_drv_ctx =
(struct vmbus_driver_context *)driver_ctx;
- device_ctx->device_obj.drv = &vmbus_drv_ctx->drv_obj;
+ device_ctx->drv = &vmbus_drv_ctx->drv_obj;
DPRINT_INFO(VMBUS_DRV,
"device object (%p) set to driver object (%p)",
- &device_ctx->device_obj,
- device_ctx->device_obj.drv);
+ &device_ctx,
+ device_ctx->drv);
match = 1;
}
diff --git a/drivers/staging/hv/vmbus_private.h b/drivers/staging/hv/vmbus_private.h
index 9f505c4..206218c 100644
--- a/drivers/staging/hv/vmbus_private.h
+++ b/drivers/staging/hv/vmbus_private.h
@@ -103,18 +103,18 @@ extern struct vmbus_connection vmbus_connection;
/* General vmbus interface */
-struct hv_device *vmbus_child_device_create(struct hv_guid *type,
+struct vm_device *vmbus_child_device_create(struct hv_guid *type,
struct hv_guid *instance,
struct vmbus_channel *channel);
-int vmbus_child_dev_add(struct hv_device *device);
-int vmbus_child_device_register(struct hv_device *root_device_obj,
- struct hv_device *child_device_obj);
-void vmbus_child_device_unregister(struct hv_device *device_obj);
+int vmbus_child_dev_add(struct vm_device *device);
+int vmbus_child_device_register(struct vm_device *root_device_obj,
+ struct vm_device *child_device_obj);
+void vmbus_child_device_unregister(struct vm_device *device_obj);
/* static void */
/* VmbusChildDeviceDestroy( */
-/* struct hv_device *); */
+/* struct vm_device *); */
struct vmbus_channel *relid2channel(u32 relid);
--
1.5.5.6
--
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