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author | K. Y. Srinivasan <kys@microsoft.com> | 2012-12-01 06:46:45 -0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-17 11:34:37 -0800 |
commit | b3bf60c7b4665d40b8eae2217b54c4745f49f470 (patch) | |
tree | 8d07f29611a65b6b4b06ab95365aadcd77fdf399 /include/linux/hyperv.h | |
parent | eafa7072e7cd806dff42b705284ca26189e527a4 (diff) | |
download | linux-3.10-b3bf60c7b4665d40b8eae2217b54c4745f49f470.tar.gz linux-3.10-b3bf60c7b4665d40b8eae2217b54c4745f49f470.tar.bz2 linux-3.10-b3bf60c7b4665d40b8eae2217b54c4745f49f470.zip |
Drivers: hv: Manage signaling state on a per-connection basis
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>
Diffstat (limited to 'include/linux/hyperv.h')
-rw-r--r-- | include/linux/hyperv.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index e72502689cd..c6e2c44a1be 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -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) |