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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/include/linux/hyperv.h
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/include/linux/hyperv.h')
-rw-r--r--kernel/include/linux/hyperv.h74
1 files changed, 42 insertions, 32 deletions
diff --git a/kernel/include/linux/hyperv.h b/kernel/include/linux/hyperv.h
index 902c37aef..ae6a711dc 100644
--- a/kernel/include/linux/hyperv.h
+++ b/kernel/include/linux/hyperv.h
@@ -26,6 +26,7 @@
#define _HYPERV_H
#include <uapi/linux/hyperv.h>
+#include <uapi/asm/hyperv.h>
#include <linux/types.h>
#include <linux/scatterlist.h>
@@ -160,16 +161,18 @@ hv_get_ringbuffer_availbytes(struct hv_ring_buffer_info *rbi,
* 1 . 1 (Windows 7)
* 2 . 4 (Windows 8)
* 3 . 0 (Windows 8 R2)
+ * 4 . 0 (Windows 10)
*/
#define VERSION_WS2008 ((0 << 16) | (13))
#define VERSION_WIN7 ((1 << 16) | (1))
#define VERSION_WIN8 ((2 << 16) | (4))
#define VERSION_WIN8_1 ((3 << 16) | (0))
+#define VERSION_WIN10 ((4 << 16) | (0))
#define VERSION_INVAL -1
-#define VERSION_CURRENT VERSION_WIN8_1
+#define VERSION_CURRENT VERSION_WIN10
/* Make maximum size of pipe payload of 16K */
#define MAX_PIPE_DATA_PAYLOAD (sizeof(u8) * 16384)
@@ -389,10 +392,7 @@ enum vmbus_channel_message_type {
CHANNELMSG_INITIATE_CONTACT = 14,
CHANNELMSG_VERSION_RESPONSE = 15,
CHANNELMSG_UNLOAD = 16,
-#ifdef VMBUS_FEATURE_PARENT_OR_PEER_MEMORY_MAPPED_INTO_A_CHILD
- CHANNELMSG_VIEWRANGE_ADD = 17,
- CHANNELMSG_VIEWRANGE_REMOVE = 18,
-#endif
+ CHANNELMSG_UNLOAD_RESPONSE = 17,
CHANNELMSG_COUNT
};
@@ -549,21 +549,6 @@ struct vmbus_channel_gpadl_torndown {
u32 gpadl;
} __packed;
-#ifdef VMBUS_FEATURE_PARENT_OR_PEER_MEMORY_MAPPED_INTO_A_CHILD
-struct vmbus_channel_view_range_add {
- struct vmbus_channel_message_header header;
- PHYSICAL_ADDRESS viewrange_base;
- u64 viewrange_length;
- u32 child_relid;
-} __packed;
-
-struct vmbus_channel_view_range_remove {
- struct vmbus_channel_message_header header;
- PHYSICAL_ADDRESS viewrange_base;
- u32 child_relid;
-} __packed;
-#endif
-
struct vmbus_channel_relid_released {
struct vmbus_channel_message_header header;
u32 child_relid;
@@ -645,6 +630,11 @@ struct hv_input_signal_event_buffer {
struct hv_input_signal_event event;
};
+enum hv_signal_policy {
+ HV_SIGNAL_POLICY_DEFAULT = 0,
+ HV_SIGNAL_POLICY_EXPLICIT,
+};
+
struct vmbus_channel {
/* Unique channel id */
int id;
@@ -713,6 +703,11 @@ struct vmbus_channel {
/* The corresponding CPUID in the guest */
u32 target_cpu;
/*
+ * State to manage the CPU affiliation of channels.
+ */
+ struct cpumask alloced_cpus_in_node;
+ int numa_node;
+ /*
* Support for sub-channels. For high performance devices,
* it will be useful to have multiple sub-channels to support
* a scalable communication infrastructure with the host.
@@ -745,6 +740,15 @@ struct vmbus_channel {
*/
struct list_head sc_list;
/*
+ * Current number of sub-channels.
+ */
+ int num_sc;
+ /*
+ * Number of a sub-channel (position within sc_list) which is supposed
+ * to be used as the next outgoing channel.
+ */
+ int next_oc;
+ /*
* The primary channel this sub-channel belongs to.
* This will be NULL for the primary channel.
*/
@@ -758,11 +762,21 @@ struct vmbus_channel {
* link up channels based on their CPU affinity.
*/
struct list_head percpu_list;
-
- int num_sc;
- int next_oc;
+ /*
+ * Host signaling policy: The default policy will be
+ * based on the ring buffer state. We will also support
+ * a policy where the client driver can have explicit
+ * signaling control.
+ */
+ enum hv_signal_policy signal_policy;
};
+static inline void set_channel_signal_state(struct vmbus_channel *c,
+ enum hv_signal_policy policy)
+{
+ c->signal_policy = policy;
+}
+
static inline void set_channel_read_state(struct vmbus_channel *c, bool state)
{
c->batched_reading = state;
@@ -982,6 +996,11 @@ int __must_check __vmbus_driver_register(struct hv_driver *hv_driver,
const char *mod_name);
void vmbus_driver_unregister(struct hv_driver *hv_driver);
+int vmbus_allocate_mmio(struct resource **new, struct hv_device *device_obj,
+ resource_size_t min, resource_size_t max,
+ resource_size_t size, resource_size_t align,
+ bool fb_overlap_ok);
+
/**
* VMBUS_DEVICE - macro used to describe a specific hyperv vmbus device
*
@@ -1236,17 +1255,8 @@ extern bool vmbus_prep_negotiate_resp(struct icmsg_hdr *,
struct icmsg_negotiate *, u8 *, int,
int);
-int hv_kvp_init(struct hv_util_service *);
-void hv_kvp_deinit(void);
-void hv_kvp_onchannelcallback(void *);
-
-int hv_vss_init(struct hv_util_service *);
-void hv_vss_deinit(void);
-void hv_vss_onchannelcallback(void *);
void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid);
-extern struct resource hyperv_mmio;
-
/*
* Negotiated version with the Host.
*/