From patchwork Tue Jul 28 12:34:58 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dexuan Cui X-Patchwork-Id: 501160 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id EAD27140E10 for ; Tue, 28 Jul 2015 21:12:46 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932154AbbG1LKN (ORCPT ); Tue, 28 Jul 2015 07:10:13 -0400 Received: from p3plsmtps2ded03.prod.phx3.secureserver.net ([208.109.80.60]:43848 "EHLO p3plsmtps2ded03.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751447AbbG1LKK (ORCPT ); Tue, 28 Jul 2015 07:10:10 -0400 Received: from linuxonhyperv.com ([72.167.245.219]) by p3plsmtps2ded03.prod.phx3.secureserver.net with : DED : id xnAA1q00Y4kklxU01nAAMd; Tue, 28 Jul 2015 04:10:10 -0700 x-originating-ip: 72.167.245.219 Received: by linuxonhyperv.com (Postfix, from userid 518) id EBDCC190211; Tue, 28 Jul 2015 05:34:58 -0700 (PDT) From: Dexuan Cui To: gregkh@linuxfoundation.org, davem@davemloft.net, stephen@networkplumber.org, 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 Cc: pebolle@tiscali.nl, stefanha@redhat.com, vkuznets@redhat.com, dan.carpenter@oracle.com Subject: [PATCH V4 2/7] Drivers: hv: vmbus: define a new VMBus message type for hvsock Date: Tue, 28 Jul 2015 05:34:58 -0700 Message-Id: <1438086898-19316-1-git-send-email-decui@microsoft.com> X-Mailer: git-send-email 1.7.4.1 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org 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 --- 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 2ca3ac1..264093a 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 */