From: Dexuan Cui <decui@microsoft.com>
To: gregkh@linuxfoundation.org, davem@davemloft.net,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
driverdev-devel@linuxdriverproject.org, olaf@aepfle.de,
apw@canonical.com, jasowang@redhat.com, kys@microsoft.com,
haiyangz@microsoft.com
Subject: [PATCH 2/7] Drivers: hv: vmbus: define a new VMBus message type for hvsock
Date: Mon, 6 Jul 2015 07:45:31 -0700 [thread overview]
Message-ID: <1436193931-26924-1-git-send-email-decui@microsoft.com> (raw)
A function to send the type of message is also added.
The coming net/hvsock driver will use this function to proactively request
the host to offer a VMBus channel for a new hvsock connection.
Signed-off-by: Dexuan Cui <decui@microsoft.com>
---
drivers/hv/channel.c | 15 +++++++++++++++
drivers/hv/channel_mgmt.c | 4 ++++
include/linux/hyperv.h | 13 +++++++++++++
3 files changed, 32 insertions(+)
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 603ce97..b09d1b7 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -218,6 +218,21 @@ error0:
}
EXPORT_SYMBOL_GPL(vmbus_open);
+/* Used for Hyper-V Socket: a guest client's connect() to the host */
+int vmbus_send_tl_connect_request(const uuid_le *shv_guest_servie_id,
+ const uuid_le *shv_host_servie_id)
+{
+ struct vmbus_channel_tl_connect_request conn_msg;
+
+ memset(&conn_msg, 0, sizeof(conn_msg));
+ conn_msg.header.msgtype = CHANNELMSG_TL_CONNECT_REQUEST;
+ conn_msg.guest_endpoint_id = *shv_guest_servie_id;
+ conn_msg.host_service_id = *shv_host_servie_id;
+
+ return vmbus_post_msg(&conn_msg, sizeof(conn_msg));
+}
+EXPORT_SYMBOL_GPL(vmbus_send_tl_connect_request);
+
/*
* create_gpadl_header - Creates a gpadl for the specified buffer
*/
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 4506a66..7018c53 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -772,6 +772,10 @@ struct vmbus_channel_message_table_entry
{CHANNELMSG_VERSION_RESPONSE, 1, vmbus_onversion_response},
{CHANNELMSG_UNLOAD, 0, NULL},
{CHANNELMSG_UNLOAD_RESPONSE, 1, vmbus_unload_response},
+ {CHANNELMSG_18, 0, NULL},
+ {CHANNELMSG_19, 0, NULL},
+ {CHANNELMSG_20, 0, NULL},
+ {CHANNELMSG_TL_CONNECT_REQUEST, 0, NULL},
};
/*
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index aa21814..8799948 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -393,6 +393,10 @@ enum vmbus_channel_message_type {
CHANNELMSG_VERSION_RESPONSE = 15,
CHANNELMSG_UNLOAD = 16,
CHANNELMSG_UNLOAD_RESPONSE = 17,
+ CHANNELMSG_18 = 18,
+ CHANNELMSG_19 = 19,
+ CHANNELMSG_20 = 20,
+ CHANNELMSG_TL_CONNECT_REQUEST = 21,
CHANNELMSG_COUNT
};
@@ -563,6 +567,13 @@ struct vmbus_channel_initiate_contact {
u64 monitor_page2;
} __packed;
+/* Hyper-V socket: guest's connect()-ing to host */
+struct vmbus_channel_tl_connect_request {
+ struct vmbus_channel_message_header header;
+ uuid_le guest_endpoint_id;
+ uuid_le host_service_id;
+} __packed;
+
struct vmbus_channel_version_response {
struct vmbus_channel_message_header header;
u8 version_supported;
@@ -1248,4 +1259,6 @@ extern struct resource hyperv_mmio;
extern __u32 vmbus_proto_version;
+int vmbus_send_tl_connect_request(const uuid_le *shv_guest_servie_id,
+ const uuid_le *shv_host_servie_id);
#endif /* _HYPERV_H */
--
2.1.0
reply other threads:[~2015-07-06 13:22 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1436193931-26924-1-git-send-email-decui@microsoft.com \
--to=decui@microsoft.com \
--cc=apw@canonical.com \
--cc=davem@davemloft.net \
--cc=driverdev-devel@linuxdriverproject.org \
--cc=gregkh@linuxfoundation.org \
--cc=haiyangz@microsoft.com \
--cc=jasowang@redhat.com \
--cc=kys@microsoft.com \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=olaf@aepfle.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).