GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Drivers: hv: Manage signaling state on a per-connection basis

Browse source 
The current code has a global handle for supporting signaling of the host
from guest. Make this a per-channel attribute as on some versions of the
host we can signal on per-channel handle.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
K. Y. Srinivasan 2012-12-01 06:46:45 -08:00 • committed by Greg Kroah-Hartman
parent eafa7072e7
commit b3bf60c7b4
3 changed files with 45 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

25
include/linux/hyperv.h
View file

@ -897,6 +897,27 @@ struct vmbus_close_msg {
struct vmbus_channel_close_channel msg;
};
/* Define connection identifier type. */
union hv_connection_id {
u32 asu32;
struct {
u32 id:24;
u32 reserved:8;
} u;
};
/* Definition of the hv_signal_event hypercall input structure. */
struct hv_input_signal_event {
union hv_connection_id connectionid;
u16 flag_number;
u16 rsvdz;
};
struct hv_input_signal_event_buffer {
u64 align8;
struct hv_input_signal_event event;
};
struct vmbus_channel {
struct list_head listentry;
@ -946,6 +967,10 @@ struct vmbus_channel {
*/
bool batched_reading;
bool is_dedicated_interrupt;
struct hv_input_signal_event_buffer sig_buf;
struct hv_input_signal_event *sig_event;
};
static inline void set_channel_read_state(struct vmbus_channel *c, bool state)