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path: root/drivers/staging/hv/channel.c
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Diffstat (limited to 'drivers/staging/hv/channel.c')
-rw-r--r--drivers/staging/hv/channel.c100
1 files changed, 24 insertions, 76 deletions
diff --git a/drivers/staging/hv/channel.c b/drivers/staging/hv/channel.c
index 455f47a..ac92c1f 100644
--- a/drivers/staging/hv/channel.c
+++ b/drivers/staging/hv/channel.c
@@ -76,15 +76,14 @@ void vmbus_get_debug_info(struct vmbus_channel *channel,
struct hv_monitor_page *monitorpage;
u8 monitor_group = (u8)channel->offermsg.monitorid / 32;
u8 monitor_offset = (u8)channel->offermsg.monitorid % 32;
- /* u32 monitorBit = 1 << monitorOffset; */
debuginfo->relid = channel->offermsg.child_relid;
debuginfo->state = channel->state;
memcpy(&debuginfo->interfacetype,
- &channel->offermsg.offer.if_type, sizeof(struct hv_guid));
+ &channel->offermsg.offer.if_type, sizeof(uuid_le));
memcpy(&debuginfo->interface_instance,
&channel->offermsg.offer.if_instance,
- sizeof(struct hv_guid));
+ sizeof(uuid_le));
monitorpage = (struct hv_monitor_page *)vmbus_connection.monitor_pages;
@@ -119,8 +118,8 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size,
u32 recv_ringbuffer_size, void *userdata, u32 userdatalen,
void (*onchannelcallback)(void *context), void *context)
{
- struct vmbus_channel_open_channel *openMsg;
- struct vmbus_channel_msginfo *openInfo = NULL;
+ struct vmbus_channel_open_channel *open_msg;
+ struct vmbus_channel_msginfo *open_info = NULL;
void *in, *out;
unsigned long flags;
int ret, t, err = 0;
@@ -173,24 +172,24 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size,
}
/* Create and init the channel open message */
- openInfo = kmalloc(sizeof(*openInfo) +
+ open_info = kmalloc(sizeof(*open_info) +
sizeof(struct vmbus_channel_open_channel),
GFP_KERNEL);
- if (!openInfo) {
+ if (!open_info) {
err = -ENOMEM;
goto errorout;
}
- init_completion(&openInfo->waitevent);
+ init_completion(&open_info->waitevent);
- openMsg = (struct vmbus_channel_open_channel *)openInfo->msg;
- openMsg->header.msgtype = CHANNELMSG_OPENCHANNEL;
- openMsg->openid = newchannel->offermsg.child_relid;
- openMsg->child_relid = newchannel->offermsg.child_relid;
- openMsg->ringbuffer_gpadlhandle = newchannel->ringbuffer_gpadlhandle;
- openMsg->downstream_ringbuffer_pageoffset = send_ringbuffer_size >>
+ open_msg = (struct vmbus_channel_open_channel *)open_info->msg;
+ open_msg->header.msgtype = CHANNELMSG_OPENCHANNEL;
+ open_msg->openid = newchannel->offermsg.child_relid;
+ open_msg->child_relid = newchannel->offermsg.child_relid;
+ open_msg->ringbuffer_gpadlhandle = newchannel->ringbuffer_gpadlhandle;
+ open_msg->downstream_ringbuffer_pageoffset = send_ringbuffer_size >>
PAGE_SHIFT;
- openMsg->server_contextarea_gpadlhandle = 0;
+ open_msg->server_contextarea_gpadlhandle = 0;
if (userdatalen > MAX_USER_DEFINED_BYTES) {
err = -EINVAL;
@@ -198,35 +197,35 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size,
}
if (userdatalen)
- memcpy(openMsg->userdata, userdata, userdatalen);
+ memcpy(open_msg->userdata, userdata, userdatalen);
spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
- list_add_tail(&openInfo->msglistentry,
+ list_add_tail(&open_info->msglistentry,
&vmbus_connection.chn_msg_list);
spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
- ret = vmbus_post_msg(openMsg,
+ ret = vmbus_post_msg(open_msg,
sizeof(struct vmbus_channel_open_channel));
if (ret != 0)
goto cleanup;
- t = wait_for_completion_timeout(&openInfo->waitevent, 5*HZ);
+ t = wait_for_completion_timeout(&open_info->waitevent, 5*HZ);
if (t == 0) {
err = -ETIMEDOUT;
goto errorout;
}
- if (openInfo->response.open_result.status)
- err = openInfo->response.open_result.status;
+ if (open_info->response.open_result.status)
+ err = open_info->response.open_result.status;
cleanup:
spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
- list_del(&openInfo->msglistentry);
+ list_del(&open_info->msglistentry);
spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
- kfree(openInfo);
+ kfree(open_info);
return err;
errorout:
@@ -234,57 +233,12 @@ errorout:
hv_ringbuffer_cleanup(&newchannel->inbound);
free_pages((unsigned long)out,
get_order(send_ringbuffer_size + recv_ringbuffer_size));
- kfree(openInfo);
+ kfree(open_info);
return err;
}
EXPORT_SYMBOL_GPL(vmbus_open);
/*
- * dump_gpadl_body - Dump the gpadl body message to the console for
- * debugging purposes.
- */
-static void dump_gpadl_body(struct vmbus_channel_gpadl_body *gpadl, u32 len)
-{
- int i;
- int pfncount;
-
- pfncount = (len - sizeof(struct vmbus_channel_gpadl_body)) /
- sizeof(u64);
-
- DPRINT_DBG(VMBUS, "gpadl body - len %d pfn count %d", len, pfncount);
-
- for (i = 0; i < pfncount; i++)
- DPRINT_DBG(VMBUS, "gpadl body - %d) pfn %llu",
- i, gpadl->pfn[i]);
-}
-
-/*
- * dump_gpadl_header - Dump the gpadl header message to the console for
- * debugging purposes.
- */
-static void dump_gpadl_header(struct vmbus_channel_gpadl_header *gpadl)
-{
- int i, j;
- int pagecount;
-
- DPRINT_DBG(VMBUS,
- "gpadl header - relid %d, range count %d, range buflen %d",
- gpadl->child_relid, gpadl->rangecount, gpadl->range_buflen);
- for (i = 0; i < gpadl->rangecount; i++) {
- pagecount = gpadl->range[i].byte_count >> PAGE_SHIFT;
- pagecount = (pagecount > 26) ? 26 : pagecount;
-
- DPRINT_DBG(VMBUS, "gpadl range %d - len %d offset %d "
- "page count %d", i, gpadl->range[i].byte_count,
- gpadl->range[i].byte_offset, pagecount);
-
- for (j = 0; j < pagecount; j++)
- DPRINT_DBG(VMBUS, "%d) pfn %llu", j,
- gpadl->range[i].pfn_array[j]);
- }
-}
-
-/*
* create_gpadl_header - Creates a gpadl for the specified buffer
*/
static int create_gpadl_header(void *kbuffer, u32 size,
@@ -437,7 +391,6 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
{
struct vmbus_channel_gpadl_header *gpadlmsg;
struct vmbus_channel_gpadl_body *gpadl_body;
- /* struct vmbus_channel_gpadl_created *gpadlCreated; */
struct vmbus_channel_msginfo *msginfo = NULL;
struct vmbus_channel_msginfo *submsginfo;
u32 msgcount;
@@ -461,7 +414,6 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
gpadlmsg->child_relid = channel->offermsg.child_relid;
gpadlmsg->gpadl = next_gpadl_handle;
- dump_gpadl_header(gpadlmsg);
spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
list_add_tail(&msginfo->msglistentry,
@@ -485,8 +437,6 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
CHANNELMSG_GPADL_BODY;
gpadl_body->gpadl = next_gpadl_handle;
- dump_gpadl_body(gpadl_body, submsginfo->msgsize -
- sizeof(*submsginfo));
ret = vmbus_post_msg(gpadl_body,
submsginfo->msgsize -
sizeof(*submsginfo));
@@ -522,8 +472,6 @@ int vmbus_teardown_gpadl(struct vmbus_channel *channel, u32 gpadl_handle)
unsigned long flags;
int ret, t;
- /* ASSERT(gpadl_handle != 0); */
-
info = kmalloc(sizeof(*info) +
sizeof(struct vmbus_channel_gpadl_teardown), GFP_KERNEL);
if (!info)
@@ -863,7 +811,7 @@ int vmbus_recvpacket_raw(struct vmbus_channel *channel, void *buffer,
pr_err("Buffer too small - needed %d bytes but "
"got space for only %d bytes\n",
packetlen, bufferlen);
- return -2;
+ return -ENOBUFS;
}
*requestid = desc.trans_id;
generated by cgit v0.10.2 at 2024-08-29 08:46:00 (GMT)