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Commit | Line | Data |
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a7b0967d MT |
1 | From 4b71288758aa1d510402b84ca93b1ef566575d22 Mon Sep 17 00:00:00 2001 |
2 | From: "K. Y. Srinivasan" <kys@microsoft.com> | |
3 | Date: Mon, 3 Feb 2014 12:42:45 -0800 | |
4 | Subject: [PATCH 25/25] Drivers: hv: vmbus: Support per-channel driver state | |
5 | ||
6 | As we implement Virtual Receive Side Scaling on the networking side | |
7 | (the VRSS patches are currently under review), it will be useful to have | |
8 | per-channel state that vmbus drivers can manage. Add support for | |
9 | managing per-channel state. | |
10 | ||
11 | Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> | |
12 | Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
13 | --- | |
14 | include/linux/hyperv.h | 14 ++++++++++++++ | |
15 | 1 file changed, 14 insertions(+) | |
16 | ||
17 | diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h | |
18 | index 6088058a3e00..732dc7e37e96 100644 | |
19 | --- a/include/linux/hyperv.h | |
20 | +++ b/include/linux/hyperv.h | |
21 | @@ -1045,6 +1045,10 @@ struct vmbus_channel { | |
22 | * This will be NULL for the primary channel. | |
23 | */ | |
24 | struct vmbus_channel *primary_channel; | |
25 | + /* | |
26 | + * Support per-channel state for use by vmbus drivers. | |
27 | + */ | |
28 | + void *per_channel_state; | |
29 | }; | |
30 | ||
31 | static inline void set_channel_read_state(struct vmbus_channel *c, bool state) | |
32 | @@ -1052,6 +1056,16 @@ static inline void set_channel_read_state(struct vmbus_channel *c, bool state) | |
33 | c->batched_reading = state; | |
34 | } | |
35 | ||
36 | +static inline void set_per_channel_state(struct vmbus_channel *c, void *s) | |
37 | +{ | |
38 | + c->per_channel_state = s; | |
39 | +} | |
40 | + | |
41 | +static inline void *get_per_channel_state(struct vmbus_channel *c) | |
42 | +{ | |
43 | + return c->per_channel_state; | |
44 | +} | |
45 | + | |
46 | void vmbus_onmessage(void *context); | |
47 | ||
48 | int vmbus_request_offers(void); | |
49 | -- | |
50 | 2.4.3 | |
51 |